Дисертації з теми "Filtering response"
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Alwan, Abdulrahman. "Implementation of Wavelet-Kalman Filtering Technique for Auditory Brainstem Response." Thesis, Linköpings universitet, Informationskodning, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-85116.
Повний текст джерелаAbdelhalim, Mohamed Ammar Ahmed. "Identifying Shooting Tweets with Deep Learning and Keywords Filtering: Comparative Study." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1617105265912086.
Повний текст джерелаZhang, Wei Vicky. "Alternative methods in neonatal hearing screening tone-burst otoacoustic emissions and time-frequency filtering /." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/hkuto/record/B41633854.
Повний текст джерелаKale, Ozkan. "An Empirical Relationship Based On High-pass Filtering To Estimate Usable Period Range For Nonlinear Sdof Response." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/3/12611432/index.pdf.
Повний текст джерела) levels. The usable period ranges that depend on magnitude, recording quality, level of inelasticity and level of degradation are determined for SDIE through robust probabilistic methodologies.
Ozen, Onder Garip. "Influence Of Filtering On Linear And Nonlinear Single Degree Of Freedom Demands." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607842/index.pdf.
Повний текст джерелаRoman, Nicoleta. "Auditory-based algorithms for sound segregation in multisource and reverberant environments." Connect to resource, 2005. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1124370749.
Повний текст джерелаTitle from first page of PDF file. Document formatted into pages; contains i-xxii, xx-xxi, 183 p.; also includes graphics. Includes bibliographical references (p. 171-183). Available online via OhioLINK's ETD Center
Ren, Peng. "Off-line and On-line Affective Recognition of a Computer User through A Biosignal Processing Approach." FIU Digital Commons, 2013. http://digitalcommons.fiu.edu/etd/838.
Повний текст джерелаPeterek, Jan. "Časově proměnná filtrace signálů EKG." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220042.
Повний текст джерелаFayolle, Gérard. "Conceptions et applications de circuits à mémoire de courant basse tension." Grenoble 1, 1998. http://www.theses.fr/1998GRE10151.
Повний текст джерелаGarcia, Lorca Federico. "Filtres récursifs temps réel pour la détection de contours : optimisations algorithmiques et architecturales." Paris 11, 1996. http://www.theses.fr/1996PA112439.
Повний текст джерелаKlubus, Jan. "Elektronické filtrační obvody s obecnými kmitočtovými charakteristikami." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413252.
Повний текст джерелаWeong, Ding-Ke, and 翁定克. "Optimal Unknown Bit Filtering for Test Response Masking." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/48842266160132602358.
Повний текст джерела淡江大學
電機工程學系碩士班
100
With developments of IC testing, LFSR and MISR technologies provide very high compression rate. However, unknown (X) states which decrease the reliability are injected into compactor. Many researches added the X-masking logic (XML) which connects between test response and compactor and prevents multiplication of X states due to their simple feedback circuitry. Further, the XML needs to add extra control codes which make it difficult to improve the efficiency. This thesis proposed the method, row-column XML, which is a novel combinational circuit. Our method can block the propagation of X and also use less control codes, but it cannot direct generate control codes as XML. So we also provided the generation algorithm of control code which can mask X efficiently and observe more testing faults. Finally, in best case, our experimental results obtains better compression rate than XML about 6.65%.
Adrian, Angelia Melani, and 洪美蘭. "A Challenge Response System for Filtering Automated SMS Spam." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/42665923533935956511.
Повний текст джерела國立臺灣科技大學
資訊工程系
98
Nowadays SMS Spam start becomes a big problem, especially in country such as China, Korea, and Vietnam. Usually the SMS Spam is sent by computer program or bot. Many researchers try to address this problem using Turing test with the conjunction of whitelist and blacklist. They focus on using CAPTCHA as the Turing test. This thesis want to try to address the problem in SMS SPAM by using another type of Turing test called Challenge Response System. The C/R System works as follows; when a message is sent by the sender, it will send to the SMSC first, and the SMSC will send the challenge questions to sender. Sender will reply the answer and SMSC will verify it. If the answer is correct then SMSC will forward the message to destination otherwise if the answer is wrong then SMSC will delete the message. The result from the experimental evaluation is quite good. The successful percentage rate for human user to pass is 94 % as the lowest rate and 100% as the highest rate, while for the machine is 0%. This result indicating that the tests are difficult enough to block automated SMS spammers. We also compare this work with previous work by some researcher in SMS Spam area and this work has some advantages compare to the previous work.
Jiang, Yu-Pei, and 江煜培. "The Cancellation of Acoustic Echo in Room by using IIR Filtering Response." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/84286165175275769768.
Повний текст джерела國立臺灣大學
工程科學及海洋工程學研究所
94
ABSTRACT Upon the digital signal processing and adaptively active control, this study adopts the (IIR) infinite impulse response digital filter as the systematic structure which combines with the (NLMS) normalized least-mean-square algorithm so as to carry on an optimize operation. To set up the acoustic-echo cancellation system for this study, the combination of the LabVIEW program and A/D-D/A converter data acquisitive equipment with personal computer is used as the required platform. For the experiment of the acoustic-echo cancellation, an enclosure with highly reflective walls is used as the experimental site, and the selected input signals both of pure-tones and random. The system performances are identified by comparing the methods to set up the parameter of system, its operation performance and their influence on the effectiveness of echo cancellation for various frequencies. Experimental results show that the ERLE by 20 to 50 decibels for various frequencies form low to high pure-tone sounds are reached. The reductions of echo power spectrum by more than 60 decibels are reached. As regards to the case of randomly acoustic echo, either the ERLE by 2 to 10 dB or the reduction of centre frequency by 3 to 15 dB is achieved. Moreover, for the case of narrow-band acoustic echo, either the ERLE by 13 to 18 dB or the reduction of centre frequency by 10 to 17 dB is achieved.
Parker, Philip. "Frequency domain descriptions of linear systems." Phd thesis, 1988. http://hdl.handle.net/1885/136792.
Повний текст джерелаLiu, Wan-Rou, and 劉婉柔. "Design of 180-Degree Hybrids with Arbitrary Filtering Response and Power Division Using Coupled Resonators." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/95545734968090543905.
Повний текст джерела國立臺灣大學
電信工程學研究所
101
This thesis focuses on integrating a 180° hybrid and bandpass filters into a single device, and establishing a general method to achieve an arbitrary filtering response and power division. To begin with, based on the groundwork for the coupled-resonator filter design, it provides an easier way to synthesize the required coupling coefficients, and the external quality factors. Next, in order to verify that this method is flexible and can be extended for different orders, responses and power division ratios, three examples of 180° hybrids using microstrip resonators are presented. In-phase or out-of-phase response of the 180° hybrid is realized by electric coupling, magnetic coupling, or mixed coupling between adjacent resonators. Its physical dimensions should satisfy the calculated coupling coefficients, and external quality factors. Simulated and measured results agree well with the design specification. In comparison to the conventional rat-race coupler, a size reduction of 65% ~ 80% can be achieved. In addition, the circuit size will be further miniaturized if smaller resonators are adopted. As a result, this method has the advantages of not only reducing the circuit size but also ensuring frequency selectivity. By using the proposed method, SIW filtering 180° hybrids can also be implemented in the LTCC technology. The idea is to arrange all cavities in the same plane, so that no additional transition is required for measurement. According to the field pattern of TE101 mode, two types of planar coupling mechanisms are investigated to fulfill the required phase response of the 180° hybrid. Two Ka-band Chebyshev filtering 180° hybrids with different power division ratios are designed to verify the approach.
Liu, Kai-Di, and 劉凱迪. "The Effects of Core Filtering layer in Seismic Response Analysis of Jenyi-Tan Earthfill Dam." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/qrjsbe.
Повний текст джерела國立臺北科技大學
土木與防災研究所
96
There are more than 20 earthfill dams with height over 15 meters in the island of Taiwan for irrigation, industry usages and drinking purposes. According to Central Weather Bureau, every year between 1991 and 2006, there were more than 1000 earthquakes measured, thus it is importance to study of the seismic response of earthfill dams. There are many methods for the purpose of seismic response analysis of earthfill dam. The common methods are the pseudo static analysis, finite element analysis and finite difference analysis. Here, the seismic response of Renyi-Tan earthfill dam has been studied. The study adopted the acceleration records of September 21, 1999, Ji-Ji earthquake, October 22, 1999, Chai-Yi earthquake and ideal sine wave acceleration and observed the effects of these accelerations together with the effects of filtering layer under the downstream slope on the pore-water pressure and settlement of the dam. Hysteretic damping was used to model the changes of shear modulus during shaking.
Malakooti, Seyedali. "Ultrawideband and Multi-state Reconfigurable Antennas with Sum and Difference Radiation Patterns." Thesis, 2019. http://hdl.handle.net/2440/124259.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Electrical and Electronic Engineering, 2020
La, Scala Barbara Francesca. "Approaches to frequency tracking and vibration control." Phd thesis, 1994. http://hdl.handle.net/1885/144209.
Повний текст джерелаRadhika, Bayya. "Monte Carlo Simulation Based Response Estimation and Model Updating in Nonlinear Random Vibrations." Thesis, 2012. http://hdl.handle.net/2005/3162.
Повний текст джерелаLiu, Po-Ting Bertram, and 劉柏廷. "The effect of fully correlated sources with spatial extents on spatial filtering on the MEG data - A study of Auditory Steady-State Response." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/xuef87.
Повний текст джерела國立交通大學
工學院聲音與音樂創意科技碩士學位學程
107
This thesis focus on the problem in source imaging of auditory steady-state responses in MEG signals. When an audio stimulus is simultaneously presented to the ears of a subject, the brain waves recorded from the subject often have fully correlated sources. Conventional spatial filters cannot accurately estimate correlated sources because it’s assumed that all sources are not cross-correlated. The method in this thesis is dual-core beamformer (DCBF). There are some papers discussing the limitation of DCBF, but the effect of spatial extent on the performance of DCBF remains unknown. The effects of noise types of background sources, and of spatial extents of correlated sources on DCBF localizers are investigated in this thesis. In results, localizer-NAI is better than localizer-K. When the standard deviations of spatial extents of correlated sources are less than 5 mm, localizer-NAI is not affected. But localizer-K only works well when the standard deviations of spatial extents of correlated sources are less than 1 mm. Furthermore, localizer-NAI has much smaller range of artifacts, which means localizer-NAI can suppress the estimation of other source locations than localizer-K.
Venkataraman, S. "On Adaptive Filtering Using Delayless IFIR Structure : Analysis, Experiments And Application To Active Noise Control And Acoustic Echo Cancellation." Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/1436.
Повний текст джерелаFilippov, Oleg. "Vectorial beam coupling in fast photorefractive crystals with AC-enhanced response." Doctoral thesis, 2004. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2004092812.
Повний текст джерелаMosayyebpour, Saeed. "Robust Single-Channel Speech Enhancement and Speaker Localization in Adverse Environments." Thesis, 2014. http://hdl.handle.net/1828/5342.
Повний текст джерелаGraduate
2015-04-23
0544
0984
saeed.mosayyebpour@gmail.com
Χατζηαντωνίου, Παναγιώτης. "Ανάπτυξη μεθόδων ψηφιακής ισοστάθμισης για ηλεκτρακουστικές εφαρμογές". 2005. http://nemertes.lis.upatras.gr/jspui/handle/10889/307.
Повний текст джерелаThe dissertation studies the digital audio equalization problem, in order to develop methods that would effectively eliminate the audio distortions being introduced during the sound reproduction by either the loudspeakers(anechoic equalization) or the room response (dereverberation). Novel methods are introduced that ensure precise measurements of anechoic electracoustic responses inside reverberant enclosures and on the other hand, achieve appropriately smoothed acoustic responses, for use in digital equalization and also in other applications of room acoustics that require analysis of concrete properties of these systems. Novel conclusions have been drawn by the analytic study of the room acoustics dereverberation based on ideal inverse filtering, indicating that the application of such a method in real time yields a significantly degraded performance compared to that achieved by the corresponding simulated dereverberation experiments. The problem of dereverberation is faced with a practically viable solution, with the introduction of a novel method based on the room response Complex Smoothing.
Τσάτσου, Κατερίνα. "Μελέτη της συσχέτισης της ηλεκτροδερμικής απάντησης προς τα σωματοαισθητικά προκλητά δυναμικά". Thesis, 2006. http://nemertes.lis.upatras.gr/jspui/handle/10889/1177.
Повний текст джерелаConcurrent studies of central and autonomic activity are considered useful in elucidating the relationship between the two systems and indicating the centripetal feedback of peripheral changes. The SSR (sympathetic skin response) is one index of autonomic arousal. In our study we examine the possible relationships between central and autonomic responses to somatosensory stimuli. EPs (evoked potentials) and SSRs were simultaneously recorded during a series of electrical stimuli of median nerve in six normal adults using three different intensities of stimuli. The weakest of them was unperceived by subject. The P40, P100, N200 and P300 waves of EPs were extracted and their latencies and amplitudes were analysed in order to find correlations with those of the SSRs. We used the conventional method of signal averaging and the single trial (ST) approach, as the EP waves were subtracted by spatial filtering. Interestingly, sympathetic nervous system seemed to react even to stimuli unperceived by the subject. The cortical processing of consciously perceived and unperceived somatosensory stimuli as it was expressed by the evoked potentials seems to be identical during the first 40ms after the stimulus onset while later waves were absent for unperceived stimuli. SSR and P300 amplitude at the ST level had a positive correlation.
(9356939), Jui-wei Tsai. "Digital Signal Processing Architecture Design for Closed-Loop Electrical Nerve Stimulation Systems." Thesis, 2020.
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