Bibliografie tematiche / Interference

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Letteratura scientifica selezionata sul tema "Interference"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 31 luglio 2024

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Articoli di riviste sul tema "Interference"

1

Sinaga, Arman Bemby. "“Interferences in Translation.” English Applied Linguistics Study Program, Postgraduate school State University of Medan, 2016". JURNAL MUTIARA PENDIDIKAN INDONESIA 3, n. 1 (1 dicembre 2018): 23–50. http://dx.doi.org/10.51544/mutiarapendidik.v3i1.395.

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The objectives of the study are (1) to describe the types of interference which occurred in the translation of bilingual books, (2) to investigate the process of interference occurred in the translation of bilingual children reading books, and (3) to state the reason for linguistic interferences occurrence in the translation of bilingual books. This research uses qualitative research method especially the applied theory. The source of the data is the translated books “Seri HewanTer” published by Kids Bestari (2014). The data area analyzed based on Bogdan and Biglen’s stages/steps especially searching the data, arranging the data and interpreting. The validity of the is taken by applying investigator triangulation involves multiple data sources in an investigation to produce understanding. Based on the analysis, it is found that there are two kinds of interferences found they are (1) syntactical interference and (2) lexical interference. The syntactical interference consisted of omission interferences (28), misorder interferences (9) and misformation interferences (73). Then, lexical interference (45) consisted of pronominal interferences (30) and redundancy interferences (15).
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Wu, Zhixia, Shengqi Zhu, Jingwei Xu, Lan Lan, Ximin Li e Yiqun Zhang. "Frequency Increment Design Method of MR-FDA-MIMO Radar for Interference Suppression". Remote Sensing 15, n. 16 (17 agosto 2023): 4070. http://dx.doi.org/10.3390/rs15164070.

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In the present complex electromagnetic environment, radar target detection is threatened by different kinds of interferences, especially mainlobe deceptive interference, which occupies the same energy distributions of targets spatially, meaning that targets and interferences cannot be discriminated. To make matters worse, the number of suppressible interferences is limited by the number of physical array elements, leading to the degradation of the suppression performance of traditional radar. In this work, we propose a frequency-increment-based interference suppression method for minimum redundancy frequency diverse array multiple-input multiple-output (MR-FDA-MIMO) radar, which effectively solves the aforementioned two problems. The interference suppression method consists of two steps: (i) in the sidelobe barrage interference suppression stage, the interference-plus-noise covariance matrix is reconstructed to overcome the influence of the true targets and mainlobe deceptive interference on the performance of the beamformer; (ii) in the mainlobe deceptive interference suppression stage, a nonadaptive beamforming method is employed to suppress mainlobe deceptive interference and overcome the impact of insufficient virtual samples on interference suppression performance. Additionally, we design a frequency-increment-based MR-FDA-MIMO radar, fully utilizing the advantages of the virtual array to enhance interference suppression performance and increase the number of interferences. Numerical experiments undertaken demonstrate the effectiveness of the algorithm under different scenarios.
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Muliansyah, Ariadi, e R. Umi Baroroh. "Interferensi Gramatika Maharah Kitabah dan Penyebabnya Pada Mahasiswa Pascasarjana UIN Sunan Kalijaga". Arabiyatuna : Jurnal Bahasa Arab 4, n. 1 (8 maggio 2020): 37. http://dx.doi.org/10.29240/jba.v4i1.1289.

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The purpose of this research is to find out the forms of grammatical interference that occur in graduate students of UIN Sunan Kalijaga. Interference is a language disorder that often occurs for language learners. Interference often occurs in all four language skills included in writing skills. Without realizing it, in writing scientific works students still often experience the first language interference, especially in the grammatical field. This research is a qualitative research with descriptive research type. The results found in this study indicate that the grammatical interference still occurs in the writing of graduate students of UIN Sunan Kalijaga. Researchers found 11 grammatical interference with details, 1 interference in the use of isim maushul, 5 interferences in making idahafah, 4 interferences in the use of fi’il (morphology), and 1 interference in the use of hurf.
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Roslina, Roslina, e Nurhayati Nurhayati. "The Updating Status in Facebook: The Interference of English among Users in Academic Context". Utamax : Journal of Ultimate Research and Trends in Education 2, n. 2 (22 luglio 2020): 50–56. http://dx.doi.org/10.31849/utamax.v2i2.4039.

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This study investigates the interference of English use made by Facebook users in writing status on their account. The researchers formulated two research questions: 1) what types of interferences are found on Facebook status; 2) what factors cause interference on Facebook status. The purpose of this study is to find out the interferences and the factors that cause the interference. This research uses descriptive qualitative method. The descriptive qualitative was used to elaborate, describe and disclose kinds of interference and also the factors of interference that Facebook users produced in updating status. The research showed that the way of the Facebook users in transferring their source language to target language tends to be negative transfer or it is called as language interference. The negative transfers made by Facebook users are semantic and grammatical interference. While, the factors that cause the interference are bilingualism background, disloyalty target language, limited vocabularies of TL mastered by a learner, prestige and style, interlingual factor, overextension of analogy, and transfer of structure.
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Triyanto, Hanif, e Endang Nurhayati. "Interferensi gramatikal bahasa Jawa dalam bahasa Indonesia pada karangan laporan peserta didik SMP". LingTera 3, n. 1 (6 maggio 2016): 23. http://dx.doi.org/10.21831/lt.v3i1.8471.

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Penelitian ini bertujuan untuk mendeskripsikan (1) bentuk-bentuk interferensi morfologi bahasa Jawa dalam bahasa Indonesia, (2) bentuk-bentuk interferensi sintaksis bahasa Jawa dalam bahasa Indonesia, dan (3) faktor penyebab terjadinya interferensi morfologi dan sintaksis bahasa Jawa dalam bahasa Indonesia pada hasil karangan menulis laporan. Penelitian ini merupakan penelitian deskriptif kualitatif. Subjek penelitian adalah hasil karangan pada pembelajaran menulis laporan berbahasa Indonesia Objek yang diteliti adalah bentuk-bentuk interferensi morfologi dan sintaksis bahasa Jawa dalam bahasa Indonesia beserta faktor-faktor penyebabnya. Pengumpulan data dilakukan dengan teknik baca dan catat serta pengisian angket. Data dianalisis menggunakan metode padan intralingual dengan teknik Hubung Banding Membedakan. Keabsahan data diperoleh melalui ketekunan pengamatan dan pemeriksaan sejawat. Hasil penelitian ini menemukan bentuk-bentuk interferensi morfologi bahasa Jawa dalam bahasa Indonesia meliputi proses morfologis dan morfofonemis. Interferensi proses morfologis meliputi afiksasi dan reduplikasi. Interferensi proses morfofonemis berupa peluluhan fonem pada awal kata berprefiks {N-}.Interferensi sintaksis meliputi pola konstruksi frasa, penggunaan preposisi, konjungsi, dan partikel. Faktor penyebab terjadinya interferensi morfo-logi dan sintaksis bahasa Jawa dalam bahasa Indonesia adalah faktor linguistik meliputi penguasaan B1, rendahnya penguasaan B2 dan faktor kedwibahasaan. Faktor nonlinguistik meliputi kebiasaan, lingkungan, sikap bahasa, motivasi, guru, dan evaluasi pembelajaran.Kata Kunci: interferensi, morfologi, sintaksis, dan faktor penyebab The grammatical interference of Javanese language in Indonesian essay of junior secondary school students’ AbstractThis research was aimed to describe (1) Javanese morphological interference forms in Indone-sian language, (2) Javanese syntactic interference forms in Indonesian language, and (3) the factors cousing Javanese morphological and syntactic interference in Indonesian essay. This research is a qualitative descriptive study. The subject of this research were the essay as learning outcomes. The objects of this research were Javanese morphological and syntactic interference forms in Indonesian language and the factors that cause the morphological and syntactic interference. The data were collected by reading and writing techniques and questionnaires. The data were analyzed using the unified intralingual method with Connecting Appeal Differentiating techniques. The validity of the data obtained from a continous observation and peer review. The results of this research find the mor-phological and syntactical interference. The morphological interference includes morphologies and morphophonemic processes. The morphologies interference process includes affixation and reduplica-tion. The morphophonemic interference process was the result of phoneme at the beginning of the word with prefix {N-}. The syntactical interference includes the pattern of phrase constructions, the use of prepositions, conjunctions, and particles. The causes of Javanese morphological and syntactic interference in Indonesian language are linguistic factors including the mastery of L1, low mastery of L2, and bilingualism factors. Nonlinguistic factors include habits, environments, language attitudes, motivations, teachers, and learning evaluations.Keywords: interference, morphological, syntactic, and causes factors
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Zhang, Duoying, Yao Zhang, Zujian Wu e Huiqin Du. "Rank-Constrained Beamforming for MIMO Cognitive Interference Channel". Mobile Information Systems 2016 (2016): 1–11. http://dx.doi.org/10.1155/2016/2152538.

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Abstract (sommario):
This paper considers the spectrum sharing multiple-input multiple-output (MIMO) cognitive interference channel, in which multiple primary users (PUs) coexist with multiple secondary users (SUs). Interference alignment (IA) approach is introduced that guarantees that secondary users access the licensed spectrum without causing harmful interference to the PUs. A rank-constrained beamforming design is proposed where the rank of the interferences and the desired signals is concerned. The standard interferences metric for the primary link, that is,interference temperature, is investigated and redesigned. The work provides a further improvement that optimizes the dimension of the interferences in the cognitive interference channel, instead of the power of the interference leakage. Due to the nonconvexity of the rank, the developed optimization problems are further approximated as convex form and are solved via choosing the transmitter precoder and receiver subspace iteratively. Numerical results show that the proposed designs can improve the achievable degree of freedom (DoF) of the primary links and provide the considerable sum rate for both secondary and primary transmissions under the rank constraints.
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Habibi, M., Puguh Ardianto Iskandar, Chandra Chandra e Ari Suriani. "Interferensi Bahasa Mandailing dalam Pemerolehan Bahasa Indonesia". Alinea: Jurnal Bahasa, Sastra, dan Pengajaran 12, n. 2 (31 ottobre 2023): 193. http://dx.doi.org/10.35194/alinea.v12i2.3096.

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This article will explain the Mandailing language interference in Indonesian that occurs among elementary school children in the South Tapanuli area, North Sumatra. The research uses a qualitative approach with a case study type of research. The results of the research show that there have been 8 cases of language interference at the phonological level, 12 cases of interference at the morphological level, 20 cases of interference at the lexicon level, and 7 cases of interference at the syntactic level. The causes of interference are bilingualism, limited vocabulary, rarely used second language vocabulary and carryover of mother tongue habits. The results of this research are useful for teachers in creating a learning environment that familiarizes themselves with the use of a second language, namely Indonesian.Keywodrs: interference; Mandaling; language acquisitionAbstrakArtikel ini akan memaparkan interferensi bahasa Mandailing dalam bahasa Indonesia yang terjadi pada anak SD di daerah Tapanuli Selatan, Sumatera Utara. Penelitian menggunakan pendekatan kualitatif dengan jenis penelitian studi kasus Hasil penelitian menunjukkan telah terjadi interferensi bahasa pada tataran fonologi sebanyak 8 kasus, interferensi pada tataran morfologi sebanyak 12 kasus, interferensi pada tataran leksikon sebanyak 20 kasus, dan interferensi pada tataran sintaksis sebanyak 7 kasus. Penyebab terjadinya interferensi adalah kedwibahasaan, perbendaharaan kosakata yang masih minim, kosakata bahasa kedua jarang digunakan, dan terbawanya kebiasaan bahasa ibu. Hasil penelitian ini bermanfaat bagi guru dalam menciptakan lingkungan belajar yang membiasakan penggunaan bahasa kedua, yaitu bahasa Indonesia.Kata kunci: interferensi; Mandaling; pemerolehan bahasa
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Du, Pengyu, Lujun Wang, Hongtao Zhang e Zhe Xie. "Performance analysis of direct-sequence spread-spectrum underwater acoustic communications based on at-sea data". MATEC Web of Conferences 283 (2019): 07006. http://dx.doi.org/10.1051/matecconf/201928307006.

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Direct sequence spread spectrum (DSSS) signal uses phase coherent signals where the information symbols are multiplied with a code sequence, commonly known as chips. The signals are processed at the receiver using the code sequence as a matched filter to extract the information symbols. Taking advantage of the spread processing gain derived from the matched filter, communications can be carried out at low signal levels, which is the preferred method for high quality underwater acoustic (UWA) communication and remote UWA communication. However, in practical applications, DSSS UWA communication will face lots of interferences including multipath interference, Doppler compression interference and phase fluctuation interference, which will seriously affect the performance of DSSS. This paper first analyzes the interferences that DSSS faces in practical applications based on multiple actual received data collected in different water areas. By calculating the gain of the matched filter loss, one can find that influence of phase fluctuation interference has the most serious impact on DSSS. Secondly, the corresponding receiver processing algorithms are given for these interferences, including the differential energy detector and Doppler estimation method. The performance of differential energy detector under the above interferences is analyzed, which shows that the differential energy detector is insensitive to slow phase fluctuation interference and multipath interference and the differential energy detector combined with Doppler compensation can work well based on moving at-sea data. Finally, the parameter design of DSSS system in practical application is discussed and parameter design of DSSS UWA communication system should comprehensively consider the Doppler compression interference and phase fluctuation interference.
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Guo, Ji Hong, Peng Jie Zhang, Hong Ming Ma e Hong Jing Ma. "Research on the Anti-Interference of Mine Soft-Start Controller". Applied Mechanics and Materials 329 (giugno 2013): 493–96. http://dx.doi.org/10.4028/www.scientific.net/amm.329.493.

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According to QJR-400 mine explosion-proof and intrinsically safe AC motor soft-start controllers are subject to various interference, to analyze interference source, interference factors and its consequences, and to study on the those interferences that has taken measures. In the hardware design, to use photoelectric isolation, anti-interference regulated power supply and reasonable grounding and other measures, which can effectively avoid interference. In the software design, digital filtering program can effectively eliminate the interference of random signals and pulse signals. The experimental results show that these measures can effectively inhibition of external interference.
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Wang, Haitao, Xiaoyong Lyu e Kefei Liao. "Co-Channel Interference Suppression for LTE Passive Radar Based on Spatial Feature Cognition". Sensors 22, n. 1 (24 dicembre 2021): 117. http://dx.doi.org/10.3390/s22010117.

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Passive radars based on long-term evolution (LTE) signals suffer from sever interferences. The interferences are not only from the base station used as the illuminator of opportunity (BS-IoO), but also from the other co-channel base stations (CCBS) working at the same frequency with the BS-IoO. Because the reference signals of the co-channel interferences are difficult to obtain, cancellation performance degrades seriously when traditional interference suppression methods are applied in LTE-based passive radar. This paper proposes a cascaded cancellation method based on the spatial spectrum cognition of interference. It consists of several cancellation loops. In each loop, the spatial spectrum of strong interferences is first recognized by using the cyclostationary characteristic of LTE signal and the compressed sensing technique. A clean reference signal of each interference is then reconstructed according to the spatial spectrum previously obtained. With the reference signal, the interferences are cancelled. At the end of each loop, the energy of the interference residual is estimated. If the interference residual is still strong, then the cancellation loop continues; otherwise it terminates. The proposed method can get good cancellation performance with a small-sized antenna array. Theoretical and simulation results demonstrate the effectiveness of the proposed method.
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Più fonti

Tesi sul tema "Interference"

1

Tichy, Malte Christopher [Verfasser], e Andreas [Akademischer Betreuer] Buchleitner. "Entanglement and interference of identical particles = Verschränkung und Interferenz ununterscheidbarer Teilchen". Freiburg : Universität, 2011. http://d-nb.info/1123461104/34.

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Rahman, Md Jahidur. "Interference mitigation and alignment for interference-limited communication systems". Thesis, University of British Columbia, 2017. http://hdl.handle.net/2429/64173.

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Abstract (sommario):
With limited availability of the communication spectrum and ever-increasing demands for high-data-rate services, it is natural to reuse the same time-frequency resource to the greatest degree possible. Depending on the nature of transmission and reception of the users, this leads to different instances of interference, e.g., inter-user interference in an interference network and self-interference in a Full-Duplex (FD) transmission. With a goal to mitigate such interference, in this thesis we investigate emerging interference-limited communication systems, such as FD, Device-to-Device (D2D), and Power Line Communication (PLC). To this end, we propose advanced solutions, namely self-interference mitigation and Interference Alignment (IA). With an objective to reduce the power consumption, we study transceiver design for FD multi-cell Multi-Input Multi-Output (MIMO) systems with guaranteed Quality of Service (QoS). Considering realistic self-interference models and robustness against Channel State Information (CSI) uncertainty, our numerical results reveal transmission scenarios and design parameters for which replacing half-duplex with FD systems is beneficial in terms of power minimization. If the system is not power constrained, however, a natural objective is to optimize the total throughput given a power budget. Nonetheless, throughput maximization underserves the users that experience poor channels, which leads to QoS unfairness. Therefore, we propose a fair transceiver design for FD multi-cell MIMO systems, which can be implemented in a distributed manner. We further extend our design to enforce robustness against CSI uncertainty. As a second contribution within this design theme, the concept of robust fair transceiver design is also extended for D2D communications, where unlike the self-interference in FD transmission, the users suffer from strong inter-user interference. Recognizing that simultaneous multiple connections in PLC contribute to (interuser) interference-limited communication, we introduce IA techniques for PLC networks, for which the results confirm a significant sum-rate improvement. To overcome the implementation burden of CSI availability for IA techniques, we then study Blind Interference Alignment (BIA) for PLC X-network, and show that the characteristics of the PLC channel thwart simple implementation of this technique via impedance modulation. We therefore resort to a transmission scheme with multiple receiving ports, which can achieve the maximum multiplexing gain for this network.
Applied Science, Faculty of
Electrical and Computer Engineering, Department of
Graduate
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Farhadi, Hamed. "Interference alignment and power control for wireless interference networks". Licentiate thesis, KTH, Kommunikationsteori, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102118.

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This thesis deals with the design of efficient transmission schemes forwireless interference networks, when certain channel state information(CSI) is available at the terminals.In wireless interference networks multiple source-destination pairsshare the same transmission medium for the communications. The signalreception at each destination is affected by the interference from unintendedsources. This may lead to a competitive situation that each sourcetries to compensate the negative effect of interference at its desired destinationby increasing its transmission power, while it in fact increasesthe interference to the other destinations. Ignoring this dependency maycause a significant waste of available radio resource. Since the transmissiondesign for each user is interrelated to the other users’ strategies, anefficient radio resource allocation should be jointly performed consideringall the source-destination pairs. This may require a certain amount ofCSI to be exchanged, e.g. through feedback channels, among differentterminals. In this thesis, we investigate such joint transmission designand resource allocation in wireless interference networks.We first consider the smallest interference network with two sourcedestinationpairs. Each source intends to communicate with its dedicateddestination with a fixed transmission rate. All terminals have the perfectglobal CSI. The power control seeks feasible solutions that properly assigntransmission power to each source in order to guarantee the successfulcommunications of both source-destination pairs. To avoid interference,the transmissions of the two sources can be orthogonalized. They canalso be activated non-orthogonally. In this case, each destination maydirectly decode its desired signals by treating the interference signals asnoise. It may also perform decoding of its desired signals after decodingand subtracting the interference signals sent from the unintendedsources. The non-orthogonal transmission can more efficiently utilize the  available channel such that the power control problem has solutions withsmaller transmission power in comparison with the orthogonal transmission.However, due to the randomness of fading effects, feasible powercontrol solutions may not always exist. We quantify the probability thatthe power control problem has feasible solutions, under a Rayleigh fadingenvironment. A hybrid transmission strategy that combines the orthogonaland non-orthogonal transmissions is then employed to use the smallesttransmission power to guarantee the communications in the consideredtwo-user interference network.The network model is further extended to the general K-user interferencenetwork, which is far more complicated than the two-user case. Thecommunication is conducted in a time-varying fading environment. Thefeedback channel’s capacity is limited so that each terminal can obtainonly quantized global CSI. Conventional interference management techniquestend to orthogonalize the transmissions of the sources. However,we permit them to transmit non-orthogonally and apply an interferencealignment scheme to tackle inter-user interference. Ideally, the interferencealignment concept coordinates the transmissions of the sources insuch a way that at each destination the interference signals from differentunintended sources are aligned together in the same sub-space which isdistinguishable from the sub-space for its desired signals. Hence, eachdestination can cancel the interference signals before performing decoding.Nevertheless, due to the imperfect channel knowledge, the interferencecannot be completely eliminated and thus causes difficulties to theinformation recovery process. We study efficient resource allocation intwo different classes of systems. In the first class, each source desires tosend information to its destination with a fixed data rate. The powercontrol problem tends to find the smallest transmission powers to guaranteesuccessful communications between all the source-destination pairs.In another class of systems where the transmission power of each sourceis fixed, a rate adaptation problem seeks the maximum sum throughputthat the network can support. In both cases, the combination of interferencealignment and efficient resource allocation provides substantialperformance enhancement over the conventional orthogonal transmissionscheme.When the fading environment is time-invariant, interference alignmentcan still be realized if each terminal is equipped with multiple antennas.With perfect global CSI at all terminals, the interference signalscan be aligned in the spatial dimension. If each terminal has only localCSI, which refers to the knowledge of channels directly related to  the terminal itself, an iterative algorithm can be applied to calculate thenecessary transmitter-side beamformers and receiver-side filters to properlyalign and cancel interference, respectively. Again, due to the lack ofperfect global CSI, it is difficult to completely eliminate the interferenceat each destination. We study the power control problem in this caseto calculate the minimum required power that guarantees each source tosuccessfully communicate with its destination with a fixed transmissionrate. In particular, since only local CSI is available at each terminal, wepropose an iterative algorithm that solves the joint power control andinterference alignment design in a distributed fashion. Our results showthat a substantial performance gain in terms of required transmissionpower over the orthogonalizing the transmissions of different sources canbe obtained.

QC 20120912

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Foutekova, Ellina P. "Interference mitigation and interference avoidance for cellular OFDMA-TDD networks". Thesis, University of Edinburgh, 2009. http://hdl.handle.net/1842/3810.

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Abstract (sommario):
In recent years, cellular systems based on orthogonal frequency division multiple access – time division duplex (OFDMA-TDD) have gained considerable popularity. Two of the major reasons for this are, on the one hand, that OFDMA enables the receiver to effectively cope with multipath propagation while keeping the complexity low. On the other hand, TDD offers efficient support for cell-specific uplink (UL)/downlink (DL) asymmetry demands by allowing each cell to independently set its UL/DL switching point (SP). However, cell-independent SP gives rise to crossed slots. In particular, crossed slots arise when neighbouring cells use the same slot in opposing link directions, resulting in base station (BS)-to-BS interference and mobile station (MS)-to-MS interference. BS-to-BS interference, in particular, can be quite detrimental due to the exposed location of BSs, which leads to high probability of line-of-sight (LOS) conditions. The aim of this thesis is to address the BS-to-BS interference problem in OFDMA-TDDcellular networks. A simulation-based approach is used to demonstrate the severity of BS-to-BS interference and a signal-to-interference-plus-noise ratio (SINR) equation for OFDMA is formulated to aid system performance analysis. The detrimental effects of crossed slot interference in OFDMA-TDD cellular networks are highlighted by comparing methods specifically targeting the crossed slots interference problem. In particular, the interference avoidance method fixed slot allocation (FSA) is compared against state of the art interference mitigation approaches, viz: random time slot opposing (RTSO) and zone division (ZD). The comparison is done based on Monte Carlo simulations and the main comparison metric is spectral efficiency calculated using the SINR equation formulated in this thesis. The simulation results demonstrate that when LOS conditions among BSs are present, both RTSO and ZD perform worse than FSA for all considered performance metrics. It is concluded from the results that current interference mitigation techniques do not offer an effective solution to the BS-to-BS interference problem. Hence, new interference avoidance methods, which unlike FSA, do not sacrifice the advantages of TDD are open research issues addressed in this thesis. The major contribution of this thesis is a novel cooperative resource balancing technique that offers a solution to the crossed slot problem. The novel concept, termed asymmetry balancing, is targeted towards next-generation cellular systems, envisaged to have ad hoc and multi-hop capabilities. Asymmetry balancing completely avoids crossed slots by keeping the TDD SPs synchronised among BSs. At the same time, the advantages of TDD are retained, which is enabled by introducing cooperation among the entities in the network. If a cell faces resource shortage in one link direction, while having free resources in the opposite link direction, the free resources can be used to support the overloaded link direction. In particular, traffic can be offloaded to near-by mobile stations at neighbouring cells that have available resources. To model the gains attained with asymmetry balancing, a mathematical framework is developed which is verified by Monte Carlo simulations. In addition, asymmetry balancing is compared against both ZD and FSA based on simulations and the results demonstrate the superior performance of asymmetry balancing. It can be concluded that the novel interference avoidance approach is a very promising candidate to.
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Estela, Zamora Maria Constanza. "Interference management for interference channels : performance improvement and lattice techniques". Thesis, Imperial College London, 2013. http://hdl.handle.net/10044/1/24678.

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Abstract (sommario):
This thesis focuses on interference management methods for interference channels, in particular on interference alignment. The aim is to contribute to the understanding of issues such as the performance of the interference alignment scheme and lattice codes for interference channels. Interference alignment is studied from two perspectives. One is the signal space perspective where precoding methods are designed to align the interference in half of the received subspace. Cadambe and Jafar found precoding matrices to achieve the theoretical degrees of freedom. However, using an interference suppression technique over the Cadambe and Jafar scheme, yields poor performance. Thus, in this thesis precoding methods such as singular value decomposition and Tomlinson-Harashima precoding are proposed to improve performance. The second perspective is on the signal scale, where structured codes are used to align interference. For this, lattice codes are suitable. In this research, the problem was initially approached with a many-to-one interference channel. Using lattices, joint maximum-likelihood decoding of the desired signal and the sum of the interference signals is used, and the union bound of the error probability for user 1 is derived, in terms of the theta series. Later, a symmetric interference channel is studied. Jafar built a scheme for every level of interference, where interference was aligned and could be cancelled. In this thesis, Barnes-Wall lattices are used since they have a similar structure to the scheme proposed by Jafar, and it is shown to be possible to improve the performance of the technique using codes constructed with Barnes-Wall lattices. Finally, previous work has found the generalized degrees of freedom for a two-user symmetric interference channel using random codes. Here, we obtain the generalized degrees of freedom for that channel setting using lattice Gaussian distribution.
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6

Campbell, Robert John. "Nonlinear interference filters". Thesis, Heriot-Watt University, 1988. http://hdl.handle.net/10399/989.

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7

Kulík, Jindřich. "Elektromagnetická interference kardiostimulátorů". Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217723.

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Abstract (sommario):
This thesis deals with electromagnetic compatibility of implantable electro-medical devices using in cardiology. The main aim of this thesis is detection of the resistance of implantable pacemakers (PM) and implantable cardioverter defibrillators (ICD) to the electromagnetic interference. In the first part of this thesis, a function of the heart, which is necessary for understanding of PM and ICD operation, is described. The function and construction of PM and ICD is detailed in the theoretical part as well. The next part is focused on the electromagnetic compatibility. The next part is description of the measurement method and the experimental arrangement used for practical experiments with electromagnetic resistance of PM and ICD.
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Lau, Ka-po Natalie. "Semantic interference of Chinese words in the picture-word interference task /". View the Table of Contents & Abstract, 2006. http://sunzi.lib.hku.hk/hkuto/record/B36846181.

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Lau, Ka-po Natalie, e 劉家寶. "Semantic interference of Chinese words in the picture-word interference task". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2006. http://hub.hku.hk/bib/B45007597.

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VASSY, LOUIS PETERSON. "OPTIMIZATION OF DEVICE PERFORMANCE IN 1x2 SYMMETRIC INTERFERENCE MULTIMODE INTERFERENCE DEVICES". University of Cincinnati / OhioLINK, 2003. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1053359061.

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Libri sul tema "Interference"

1

Antoine, Amélie. Interference. Seattle: AmazonCrossing, 2016.

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2

Principe, Concetta. Interference. Toronto: Guernica, 1999.

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3

Sioud, Mouldy, a cura di. RNA Interference. New York, NY: Springer New York, 2015. http://dx.doi.org/10.1007/978-1-4939-1538-5.

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Pahl, John. Interference Analysis. Chichester, UK: John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781119065296.

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Min, Wei-Ping, e Thomas Ichim, a cura di. RNA Interference. Totowa, NJ: Humana Press, 2010. http://dx.doi.org/10.1007/978-1-60761-588-0.

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Schubert, Martin, e Holger Boche. Interference Calculus. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-24621-0.

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Paddison, Patrick J., e Peter K. Vogt, a cura di. RNA Interference. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-75157-1.

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Johnson, Paul H., a cura di. RNA Interference. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2011. http://dx.doi.org/10.1002/9780470923733.

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network), ESPN (Television, e Lilly Diabetes Care (Firm), a cura di. Running interference. New York: Disney Press, 2012.

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Dramatists Play Service (New York, N.Y.), a cura di. The interference. New York, NY: Dramatists Play Service, Inc., 2017.

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Capitoli di libri sul tema "Interference"

1

Beynon, J. "Interference". In Work Out Waves and Optics, 52–80. London: Macmillan Education UK, 1988. http://dx.doi.org/10.1007/978-1-349-10165-8_3.

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MacKay-Brandt, Anna. "Interference". In Encyclopedia of Clinical Neuropsychology, 1341. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-0-387-79948-3_1312.

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Humphreys, Todd. "Interference". In Springer Handbook of Global Navigation Satellite Systems, 469–503. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-42928-1_16.

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MacKay-Brandt, Anna, e Tina Trudel. "Interference". In Encyclopedia of Clinical Neuropsychology, 1–2. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-56782-2_1312-2.

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MacKay-Brandt, Anna, e Tina Trudel. "Interference". In Encyclopedia of Clinical Neuropsychology, 1833–34. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-57111-9_1312.

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Mickelson, Alan Rolf. "Interference". In Physical Optics, 226–74. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3530-0_6.

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Lüders, Klaus, e Robert Otto Pohl. "Interference". In Pohl's Introduction to Physics, 383–411. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-50269-4_20.

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Carroll, Michael. "Interference". In Lords of the Ice Moons, 153–58. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-98155-0_32.

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Chen, Jinzhi, e Bowen Hou. "Interference". In Encyclopedia of Evolutionary Psychological Science, 1–3. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-16999-6_1106-1.

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Weik, Martin H. "interference". In Computer Science and Communications Dictionary, 814. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_9350.

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Atti di convegni sul tema "Interference"

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Jiang, Yunhao, Wenfang Ding, Ziqiang Xi, Nan Zhao e Minghu Wu. "Interference cancellation for two interferences with single co-site interference cancellation system". In 2017 IEEE 17th International Conference on Communication Technology (ICCT). IEEE, 2017. http://dx.doi.org/10.1109/icct.2017.8359474.

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Letter, John G., e Zhi-Kui Ling. "Interference/Collision Detection Using Geometric Halfspaces". In ASME 1991 International Computers in Engineering Conference and Exposition. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/cie1991-0026.

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Abstract (sommario):
Abstract Analyzing engineering problems with solid modelling has significantly increased in popularity in recent years. One of the areas of analyses is interference and collision detection between solid objects. Interference is defined as a condition in which two objects share a portion of space at the same instance of time. Collision is defined as a condition in which the surfaces of two objects are in contact. This paper presents a method of determining interferences and collisions between objects defined by geometric halfspaces. Specifically, it is implemented in a process of determining collision free paths of a three degree of freedom manipulator installed in a recirculating nuclear steam generator. Possible interference / collision between the components of the manipulator and generator are examined. Halfspaces are used to construct solid objects for the purpose of determining interferences and collisions between any two objects. Halfspaces are defined as simple point sets that have characteristic functions. The halfspaces presented in this paper are planes, cylinders, and spheres. Definition points, which are a set of discrete points on the surface of the object, approximate the shape of the object. Halfspaces and definition points are the information required for the interference / collision detection analysis. The technique addressed in this paper checks the relative location of the definition points of one object with the geometric halfspaces of another object. The result of each analysis determines if the objects are either interfering with, in contact with, or separated from each other.
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Walker, James. "Optical MEMS technology". In Optical Interference Coatings. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/oic.2001.we1.

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Fink, Yoel. "Omnidirectional coatings for telecom applications". In Optical Interference Coatings. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/oic.2001.tub1.

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Kruschwitz, Jennifer. "Designing color correcting coatings for optimum color rendering index and light output". In Optical Interference Coatings. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/oic.2001.tub2.

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Kruschwitz, Jennifer. "Designing nonpolarized high reflecting coatings within immersed high-index media". In Optical Interference Coatings. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/oic.2001.tub3.

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Surdutovich, Gregory, e Ritta Vitlina. "Integral multiple layers dual-band reflection coatings". In Optical Interference Coatings. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/oic.2001.tub4.

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Carniglia, Charles, e G. D. Jensen. "The equivalence between surface roughness and an absorbing layer on the surface". In Optical Interference Coatings. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/oic.2001.tub5.

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Schallenberg, Uwe, e Stefan Jakobs. "Advanced induced transmission filters for the UV and the visible range". In Optical Interference Coatings. Washington, D.C.: OSA, 2001. http://dx.doi.org/10.1364/oic.2001.tub6.

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Shinar, Joseph. "Current issues in the science and technology of organic light-emitting devices". In Optical Interference Coatings. Washington, D.C.: OSA, 2004. http://dx.doi.org/10.1364/oic.2004.fa2.

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Rapporti di organizzazioni sul tema "Interference"

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Brown, Ashleigh. Interference. Brooke, aprile 2011. http://dx.doi.org/10.46746/gaw.2020.abi.interf.

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Sessler, Andrew M. Quantum interference. Office of Scientific and Technical Information (OSTI), gennaio 2004. http://dx.doi.org/10.2172/840046.

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Spies, Samuel. Election Interference. MediaWell, Social Science Research Council, luglio 2019. http://dx.doi.org/10.35650/md.2002.d.2019.

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Rathsman, Johan. Odderon-Pomeron Interference. Office of Scientific and Technical Information (OSTI), aprile 1999. http://dx.doi.org/10.2172/10037.

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Dougherty, F. C. Aerodynamic Interference Between Stores. Fort Belvoir, VA: Defense Technical Information Center, gennaio 1992. http://dx.doi.org/10.21236/ada247207.

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Zissman, M. A. Cochannel Talker Interference Suppression. Fort Belvoir, VA: Defense Technical Information Center, luglio 1991. http://dx.doi.org/10.21236/ada241029.

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Shih, S. Y., e M. P. Saur. Interference Canceller System (ICS) Test. Fort Belvoir, VA: Defense Technical Information Center, novembre 1988. http://dx.doi.org/10.21236/ada203759.

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Singh, V., M. Lentz, B. Bhattacharjee, R. J. La e M. A. Shayman. Interference Management in Heterogeneous Networks. Fort Belvoir, VA: Defense Technical Information Center, giugno 2013. http://dx.doi.org/10.21236/ada586700.

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Gray, III, e James W. Probabilistic Interference in Restrictive Systems. Fort Belvoir, VA: Defense Technical Information Center, giugno 1991. http://dx.doi.org/10.21236/ada238924.

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Ma, Mark T. Electromagnetic compatibility and interference metrology. Gaithersburg, MD: National Bureau of Standards, 1986. http://dx.doi.org/10.6028/nbs.tn.1099.

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