Academic literature on the topic 'Phase noise'

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Journal articles on the topic "Phase noise"

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Yeom, Kyung-Whan, and Jin-Seong Roh. "An Efficient Cross-Correlation Method for a Digital Phase Noise Measurement System." Journal of Electromagnetic Engineering and Science 22, no. 6 (November 30, 2022): 665–77. http://dx.doi.org/10.26866/jees.2022.6.r.136.

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In this paper, we propose a digital phase noise measurement using a 10-bit digital oscilloscope MXR608A from Keysight Technologies. The digital oscilloscope’s four channel data are used for digital phase noise measurement: two channels are assigned for the equally divided SUT (source under test), while the other two are assigned for the equally divided reference signals. First, we propose a cross correlation method to identify the phase noises added by the ADCs in the digital oscilloscope from the measured phase noises. Then, we propose a novel cross correlation method to extract the SUT phase noise. The cross-correlation output of the proposed method yields only the SUT phase noise and does not contain the reference signal phase noise unlike the traditional method. The proposed method was applied to measure the phase noises of the two SUTs, Keysight’s synthesized signal generator E8257D and function generator 33600A. The measured phase noises of the two SUTs were compared and found to show remarkable agreements with those measured using Keysight’s signal source analyzer E5052B. The phase noise floor of our digital phase noise measurement system is about -160 dBc/Hz.
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Sahoo, Lokanath, Krushnendu Sundar Sahoo, and Nitish Kumar Nayak. "The effect of environmental noise on speech perception of individuals with sensorineural hearing loss: a prospective observational study." International Journal of Otorhinolaryngology and Head and Neck Surgery 6, no. 7 (June 25, 2020): 1263. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20202778.

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<p class="abstract"><strong>Background:</strong> This study was done to identify the effect that environmental noises have on speech perception of individual with sensorineural hearing loss. The objectives were to develop evidence-based approach to support the need for sophisticated technology and to choose the better one for daily listening purposes of Hearing-Impaired individual to obtain a speech perception score when environmental noises are used as competing signal.</p><p class="abstract"><strong>Methods:</strong> The study was executed in three phases. In phase 1, developing a noise check list and recording the noise levels at different places by using sound level meter, in phase 2, analyzing the recorded noises into spectral and temporal distributions by using software and phase 3, testing the hearing loss individual’s syllables in the presence of recorded noises. </p><p class="abstract"><strong>Results:</strong> For 0 dB signal to noise ratio (SNR), the mean scores for white noise and temple noise were higher than for other noise types. The bus and auto noise conditions also showed significant difference in values between them. For +10 dB SNR, speech scores obtained for audiometry noise differed statistically from only restaurant and traffic noise. The traffic noise being the poorest differed statistically from all other noise types. On the other end of range, restaurant noise showed highest speech scores.</p><p class="abstract"><strong>Conclusions:</strong> The overall the scores were a lot higher for only restaurant noise and noise of travel in auto. These showed effect of masking release and that hearing impaired are better able to understand conversations in these situations at least.</p>
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Li, Jian, Dongwei Hei, Gaofeng Cui, Mengmin He, Juan Wang, Zhehan Liu, Jie Shang, Xiaoming Wang, and Weidong Wang. "GAN-LSTM Joint Network Applied to Seismic Array Noise Signal Recognition." Applied Sciences 11, no. 21 (October 25, 2021): 9987. http://dx.doi.org/10.3390/app11219987.

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The purpose of seismic data processing in nuclear explosion monitoring is to accurately and reliably detect seismic or explosion events from complex ambient noises. Accurate detection and identification of seismic phases are of great significance to the detection and parameter estimation of seismic events. In seismic phase identification, discriminating between noise signals and real seismic signals is essential. Accurate identification of noise signals helps reduce false detections, improves the accuracy of automatic bulletins, and relieves the workload of analysts. At the same time, in seismic exploration, the prime objective in data processing is also to enhance the signal and suppress the noises. In this study, we combined a generative adversarial network (GAN) with a long short-term memory network (LSTM) to discriminate between noise and phases in seismic waveforms recorded by the International Monitoring System (IMS) array MKAR. First, using the beamforming data of the array as the input, we obtained the signal features of seismic phases through the learning of the GAN discriminator network. Then, we input these features and trained the joint network on mixed seismic phase and noise data, and successfully classified seismic phases and noise signals with a recall of 95.28% and 97.64%, respectively. Based on this model, we established a real-time data processing method, then validated the effectiveness of this method with real 2019 data of MKAR. We also verified whether improved noise signal identification improves the quality of phase association and event detection.
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Horiuchi, Noriaki. "Ultralow phase noise." Nature Photonics 5, no. 12 (December 2011): 725. http://dx.doi.org/10.1038/nphoton.2011.313.

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Cao, Chun Yan, Shui Dong Xiong, Zheng Liang Hu, and Yong Ming Hu. "Suppression of Double Rayleigh Scattering Induced Coherent Noise in a Remote Fiber Sensor System Using PGC Technique." Advanced Materials Research 571 (September 2012): 185–89. http://dx.doi.org/10.4028/www.scientific.net/amr.571.185.

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Double Rayleigh scattering (DRS) induces coherent noises in remotely interrogated optical fiber sensor systems especially when high coherence laser sources are used. Phase generation carried (PGC) technique has been used in optical fiber sensors to overcome bias induced signal fading and eliminated incoherent noises at low frequency. In this paper we demonstrated that PGC technique can also suppress DRS induced coherent noises. In an experimental setup with total 50-km input and output lead fibers, we achieved maximum 7dB of intensity noise suppression and maximum 10dB of phase noise suppression. With PGC technique, DRS induced phase noise has been suppressed to the sensor self-noise level.
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Guo, Hui, Jin-Ming Liu, Cheng-Jie Zhang, and C. H. Oh. "Quantum discord of a three-qubit W-class state in noisy environments." Quantum Information and Computation 12, no. 7&8 (July 2012): 677–92. http://dx.doi.org/10.26421/qic12.7-8-12.

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We study the dynamics of the pairwise quantum discord (QD), classical correlation (CC), and entanglement of formation (EOF) for the three-qubit W-class state |W>_{123}=\frac 12(|100>_{123}+|010>_{123}+\sqrt{2}|001>_{123}) under the influence of various Markovian noises by analytically solving the master equation in the Lindblad form. Through numerical analysis, we find that EOF decreases asymptotically to zero with time for the dephasing noise, but it undergoes sudden death for the bit-flip noise, the isotropic noise, as well as the dissipative and noisy environments. Moreover, QD decays to zero in an asymptotical way for all the noises we investigated. Thus, when the W-class state |W>_{123} is subject to the above Markovian noises, QD is more robust than EOF against decoherence excluding the phase-flip noise, implying that QD is more useful than entanglement to characterize the quantum correlation. We also find a remarkable character for the CC in the presence of the phase-flip noise, i.e., CC displays the behavior of sudden transition and then keeps constant permanently, but the corresponding QD just exhibits a very small sudden change. Furthermore, we verify the monogamic relation between the pairwise QD and EOF of the W-class state.
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P. W. M. Tsang, P. W. M. Tsang, Y. T. Chow Y. T. Chow, and and T. C. Poon and T.-C. Poon. "Generation of edge-preserved noise-added phase-only hologram." Chinese Optics Letters 14, no. 10 (2016): 100901–4. http://dx.doi.org/10.3788/col201614.100901.

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Homayoun, Aliakbar, and Behzad Razavi. "Relation Between Delay Line Phase Noise and Ring Oscillator Phase Noise." IEEE Journal of Solid-State Circuits 49, no. 2 (February 2014): 384–91. http://dx.doi.org/10.1109/jssc.2013.2289893.

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Klosin, A., F. Oltsch, T. Harmon, A. Honigmann, F. Jülicher, A. A. Hyman, and C. Zechner. "Phase separation provides a mechanism to reduce noise in cells." Science 367, no. 6476 (January 23, 2020): 464–68. http://dx.doi.org/10.1126/science.aav6691.

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Expression of proteins inside cells is noisy, causing variability in protein concentration among identical cells. A central problem in cellular control is how cells cope with this inherent noise. Compartmentalization of proteins through phase separation has been suggested as a potential mechanism to reduce noise, but systematic studies to support this idea have been missing. In this study, we used a physical model that links noise in protein concentration to theory of phase separation to show that liquid droplets can effectively reduce noise. We provide experimental support for noise reduction by phase separation using engineered proteins that form liquid-like compartments in mammalian cells. Thus, phase separation can play an important role in biological signal processing and control.
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Thakran, Snekha. "A hybrid GPFA-EEMD_Fuzzy threshold method for ECG signal de-noising." Journal of Intelligent & Fuzzy Systems 39, no. 5 (November 19, 2020): 6773–82. http://dx.doi.org/10.3233/jifs-191518.

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The Electrocardiogram (ECG) signal records the electrical activity of the heart. It is very difficult for physicians to analyze the ECG signal if noise is embedded during acquisition to inspect the heart’s condition. The denoising of electrocardiogram signals based on the genetic particle filter algorithm(GPFA) using fuzzy thresholding and ensemble empirical mode decomposition (EEMD) is proposed in this paper, which efficiently removes noise from the ECG signal. This paper proposes a two-phase scheme for eliminating noise from the ECG signal. In the first phase, the noisy signal is decomposed into a true intrinsic mode function (IMFs) with the help of EEMD. EEMD is better than EMD because it removes the mode-mixing effect. In the second phase, IMFs which are corrupted by noise is obtained by using spectral flatness of each IMF and fuzzy thresholding. The corrupted IMFs are filtered using a GPF method to remove the noise. Then, the signal is reconstructed with the processed IMFs to get the de-noised ECG. The proposed algorithm is analyzed for a different local hospital database, and it gives better root mean square error and signal to noise ratio than other existing techniques (Wavelet transform (WT), EMD, Particle filter(PF) based method, extreme-point symmetric mode decomposition with Nonlocal Means(ESMD-NLM), and discrete wavelet with Savitzky-Golay(DW-SG) filter).
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Dissertations / Theses on the topic "Phase noise"

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Grobbelaar, Johannes Jacobus. "Phase noise measurement." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6806.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2011.
ENGLISH ABSTRACT: The objective of the thesis is the development of a phase noise measuring system that makes use of crosscorrelation and averaging to measure below the system hardware noise floor. Various phase noise measurement techniques are considered after which the phase demodulation method is chosen to be implemented. The full development cycle of the hardware is discussed, as well as the post processing that is performed on the measured phase noise.
AFRIKAANSE OPSOMMING: Die doel van hierdie tesis is die ontwikkeling van ’n faseruis meetstelsel wat gebruik maak van kruiskorrelasie en vergemiddeling om onder die ruisvloer van die meetstelsel se hardeware te meet. Verskeie faseruis meettegnieke word ondersoek en die fase demodulasie metode word gekies om geïmplementeer te word. Die volle ontwikkelingsiklus van die hardeware word bespreek, sowel as die naverwerking wat toegepas is op die gemete faseruis.
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Vogel, Michael 1980. "Low phase-noise VCO design." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/87880.

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Sanders, Barry Cyril. "Phase noise in quantum physics." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/11624.

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The nature of phase noise in quantum optics is analyzed. In an experiment involving the measurement of the electromagnetic field the two quantities of interest are the energy and phase of the field. However, measurements of the quantities produce quantum fluctuations. The quantum fluctuations are regarded as noise in the treatment presented here. The quantum system is represented by a probability distribution, the Wigner function, and the quantum fluctuations are treated as stochastic noise associated with the quantity being measured. The difficulties of associating a quantum operator with the phase of the system are reviewed and the related energy-phase uncertainty relation is discussed. The alternate interpretation of the phase noise of a quantum system as being the classical phase noise of the Wigner function is presented. In particular the energy and phase noise of the vacuum state, the coherent state, the squeezed state and the squeezed vacuum are discussed in this way. The squeezed states of light are minimum uncertainty states with respect to the quadrature operators and exhibit noise of one quadrature below the noise level associated with the vacuum. The reduced noise level in one quadrature of the field underlies the importance of squeezed states in many practical applications where there is a need to reduce the quantum noise of one quadrature of coherent light. The periodic phase operator eliminates the difficulties associated with the multivalued nature of phase. The analysis of the vacuum and intense coherent state of Carruthers and Nieto by employing periodic phase operators is reviewed, particularly with respect to the energy-phase uncertainty relations and we generalize the approach to develop a phase operator analysis of the squeezed state in the intense field and vacuum limits. We demonstrate here for the first time that the phase operator is simply related to the phase of the squeezed state in the intense field limit and that the squeezed state is approximately an energy-phase minimum uncertainty state in the low-squeezing limit. Also we enlarge on previous work to demonstrate that the phase operator corresponds simply and unambiguously to the phase of the squeeze parameter for the strongly squeezed vacuum and the intensely squeezed vacuum is an energy-phase minimum uncertainty state for some values of phase. The occurrence of squeezing for the case of two coupled quantum oscillators is presented. The system consisting of one mode of the electromagnetic field coupled to a spinless nonrelativistic electron subjected to an harmonic potential is represented by two coupled harmonic oscillators. The dynamics are compared for the case that the rotating wave approximation is employed and for the case that the counter-rotating terms are included. These calculations have not been performed before. The parametric amplifier Hamiltonian with a nonresonant coupling is also studied in order to provide insight into the effects of the counter-rotating terms. Squeezing of the field produced by the electron is a consequence of the inclusion of the counter-rotating terms. The case of a spinless nonrelativistic electron subject to an harmonic potential and coupled to a continuum of electromagnetic field modes is also considered. The case of two coupled oscillators discussed above is generalized by replacing the oscillator which represents the single-mode field by a bath of oscillators. The effects of including counter-rotating terms and of ignoring the counter - rotating terms in the Hamiltonian are compared. The interaction is assumed to produce a frequency shift and an exponential damping term for the oscillating electron. The frequency shift is assumed to be small in either case and so the Wigner-Weisskopff approximation is employed to solve the equations of motion. We demonstrate the new results that dissipation-induced phase-dependent noise is a consequence of including the counter-rotating terms and that the noise is phase-independent for the case that the counterrotating terms are excluded. The relation between these results and recent work on quantum tunnelling in superconducting quantum interference devices is discussed. We conclude by suggesting further research related to the work in this thesis.
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Rael, Jacob Jude. "Phase noise in LC oscillators." Diss., Restricted to subscribing institutions, 2007. http://proquest.umi.com/pqdweb?did=1472130231&sid=1&Fmt=2&clientId=1564&RQT=309&VName=PQD.

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Brock, Scott E. "Device Shot Noise and Saturation Effects on Oscillator Phase Noise." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/35099.

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Oscillator phase noise is an important factor in designing radio frequency (RF) communications hardware. Phase noise directly contributes to adjacent-channel interference and an increase in bit error rate (BER).

Understanding the operation of an oscillator can help with the oscillator design process. Also, the understanding of the noise processes within an oscillator can add insight to the design process, allowing an intelligent low-noise design. It will be shown that although simulation software can be helpful, the understanding of the oscillator operation is a valuable tool in the design process.

Oscillator design will be discussed, and then the noise processes of the oscillator will be investigated. A new method of decomposing shot noise into in-phase and quadrature components will be discussed. The noise processes discussed for a non-saturating bipolar junction transistor (BJT) Colpitts oscillator will be extended to the case of a saturating BJT Colpitts oscillator. This new method gives insight into the design of low-noise oscillators, and provides guidelines for design of low-noise oscillators. Example oscillators will support the theory and low-noise design guidelines. It will be seen that although designing an oscillator to saturate can provide a stable output level over a wide bandwidth, the added noise production may degrade the performance of the oscillator through both a lower effective Q and restricted signal level compared to the noise.
Master of Science

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SANTOS, BRUNO PALHARES DOS. "PHASE NOISE OPTIMIZATION OF MICROWAVE OSCILLATORS." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2005. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=7590@1.

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COORDENAÇÃO DE APERFEIÇOAMENTO DO PESSOAL DE ENSINO SUPERIOR
Nesta dissertação foram projetados e desenvolvidos osciladores apresentando ruído de fase otimizado. Em virtude das limitações dos equipamentos analisadores de espectro na precisa medição do ruído de fase dos osciladores desenvolvidos nos laboratórios do CETUC, foi implementada a técnica de medição Método do Detector de Fase. Esta técnica consiste no desenvolvimento de um segundo oscilador com as mesmas características do existente, e com auxílio de misturadores, realizar o batimento dos mesmos para freqüências próximas a DC, onde nesta região a medição do ruído de fase torna-se viável. Entretanto, em aplicações dedicadas, verificou-se que o batimento entre dois osciladores operando em torno de 10 GHz produz uma freqüência intermediária instável, variando de 10 kHz à 50 kHz. Para evitar a realização de uma medição extremamente instável, utilizou-se o método de sincronização de freqüências (Injection Locking) entre os osciladores. Foi também destacada a influência do ruído de cintilação (Flicker Noise) na medida final do ruído de fase. A melhor medida aferida foi em torno de -100 dBc/Hz @ 3,25 kHz. Foi verificado através de diversas simulações que a freqüência de cintilação int c f , situada em 10 MHz, apresenta grande influência sobre as medições do ruído de fase realizadas à 3,25 kHz da portadora, degradando-o em cerca de 30dB.
In this dissertation, oscillators presenting optimized phase noise had been projected and develloped. Because of the limitation of the specter analyzer devices in the accurate measurements of the oscillators phase noise developed in the CETUC laboratories, it was implemented the measurement technique called Phase Detector Method. This technique consists on the development of a second oscillator with the same characteristics of the already existent one and, with aid of mixers, multiplies these signals together and provides the difference of the two signals next to DC, where, in this region, the measurement of the phase noise becomes viable. However, in dedicated applications, it was verified that the beating between two oscillators operating around 10GHz produces instable intermediate frequency, varying between 10kHz to 50kHz. To prevent the accomplishment of an extremely unstable measurement, the method of synchronization of frequency (Injection Locking) between the oscillators was used. Also the influence of the Flicker Noise in the final measure of the phase noise was detached. The best measure was around -100dBc/Hz@3,25kHz. It was verified through lots of simulations that the flicker corner frequency int c f , situated in 10MHz, presents great influence on the measures of the phase noise carried through to the 3,25kHz of the carrier, degrading it in about 30dB.
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Azizoḡlu, Murat. "Phase noise in coherent optical communications." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13463.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1991.
Includes bibliographical references (p. 201-206).
by Murat Azizoğlu.
Ph.D.
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Maree, Jacques. "Low phase noise cylindrical cavity oscillator." Thesis, Stellenbosch : Stellenbosch University, 2013. http://hdl.handle.net/10019.1/80079.

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Thesis (MScEng)--Stellenbosch University, 2013.
ENGLISH ABSTRACT: The objective of this thesis is to develop a 9.2 GHz low phase noise oscillator with a cylindrical cavity resonator. A cylindrical metal cavity with air as dielectric was used as a resonator. To minimise the phase noise of the oscillator, the resonator must be designed to have a high Q-factor. A high Q-factor was obtained by designing the resonator to operate in the TE011 mode. A tuning screw was used to tune the resonant frequency without significantly affecting the Q-factor. The tuning screw also separates the resonant frequencies of the degenerate TE011 and TM111 modes. The signal is coupled to the resonator by means of rectangular apertures. The coupling was designed to minimise the phase noise of the oscillator. A dual mode waveguide filter was developed and inserted into the oscillator loop in order to prevent oscillation at unwanted frequencies. Due to the excellent phase noise performance of the oscillator, it was not possible to measure the phase noise directly with the available phase noise meter. A measurement setup using two similar oscillators tuned to oscillate at frequencies differing by about 60 MHz was implemented. The output signals were down-converted to the difference frequency where the phase noise could be measured accurately. The output signal of the oscillator was measured at different locations in the loop and clearly showed that the resonator can be used as a filter to minimise the phase noise. The performance of the oscillators met all expectations. Phase noise levels of -115 dBc/Hz and -146 dBc/Hz were obtained at offset frequencies of 10 and 100 kHz.
AFRIKAANSE OPSOMMING: Die doel van hierdie tesis is om ‘n 9.2 GHz lae faseruis ossillator met 'n silindriese holte resoneerder te ontwikkel. 'n Silindriese metaal golfleier holte met 'n lug diëlektrikum was gebruik as die resoneerder. Om die faseruis van die ossillator te minimeer moet die resoneerder ontwerp word om 'n hoë Q-faktor te hê. Om 'n hoë Q-faktor te behaal was die resoneerder ontwerp om in die TE011 orde te werk. Die resoneerder is toegerus met 'n verstelskroef wat die bedryfsfrekwensie verstel sonder om die belaste Q-faktor aansienlik te beïnvloed. Die verstelskroef skei ook die frekwensie van die degeneratiewe TE011 en TM111 ordes. Drywing word na die resoneerder gekoppel deur middel van reghoekige openinge. Die koppeling is ontwerp om die faseruis van die ossillator te minimeer. 'n Tweede orde dubbelmodes golfleier filter is ontwerp en in die ossillatorlus ingevoeg om ossillasie by ongewenste frekwensies te voorkom. Vanweë die baie lae faseruis van die ossillator was dit nie moontlik om die faseruis direk met die beskikbare faseruismeter te meet nie. 'n Meetopstelling met twee soorgelyke ossillators waarvan die frekwensies met ongeveer 60 MHz verskil is geïmplementeer. Die uittreeseine van die ossillators is afgemeng na die verskilfrekwensie waar die meetinstrument meer sensitief is en die faseruis akkuraat gemeet kan word. Die uittreesein van die ossillator is by verskillende punte gemeet en het duidelik getoon dat die resoneerder as filter gebruik kan word om die faseruis te minimeer. Die ossillators se werkverrigting het aan die verwagtinge voldoen. Faseruis vlakke van -115 dBc/Hz en -146 dBc/Hz by afsetfrekwensies van onderskeidelik 10 en 100 kHz is verkry.
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Ye, Sheng. "Phase realignment and phase noise suppression in PLLs and DLLs /." Diss., Connect to a 24 p. preview or request complete full text in PDF format. Access restricted to UC campuses, 2003. http://wwwlib.umi.com/cr/ucsd/fullcit?p3091345.

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Theodoropoulos, Konstantinos. "Residual phase noise modelling of silicon bipolar amplifiers and ultra low phase noise ceramic dielectric resonator oscillators." Thesis, University of York, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.556201.

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This thesis describes research into the modelling of residual 1/ f phase noise for Si bipolar amplifiers operating in the linear region and the design construction and measurements of L-Band (1.2 GHz) and C-Band (4.2 GHz and 4.6 GHz) ceramic dielectric resonator based ultra low phase noise oscillators using Si devices. It proposed and demonstrated that for Si bipolar amplifiers the 1/ f phase noise is largely due to the base emitter recombination flicker noise. The up conversion mechanism is described through linear approximation of the phase variation of the amplifier phase response by the variation of the device parameters (Cbc, Cbe, gm, re) caused by the recombination 1/ f noise. The amplifier phase response describes the device over the whole frequency range of operation where the influence of the poles and zeros is investigated. It is found that for a common emitter amplifier it is sufficient to only incorporate the effect of the device poles to describe the phase noise behaviour over most of its operational frequency range. Simulations predict the measurements of others including the flattening of the PM noise at frequencies beyond f3dB, not predicted by previous models. A novel ceramic dielectric resonator based oscillator at 1.2 GHz is described. The oscillator achieves phase noise of -171.8 d. Bc] Hz at 10 kHz offset and ~ 144.5 d. Bc] H z at 1 kHz which is the lowest noise reported in the literature at this frequency band. To achieve these results extensive optimisation of amplifiers has been taken place. For example the amplifiers used in the oscillator produce a very low phase noise better than -182 dBc / Hz at 10 kHz and -175 dBc / Hz at 1 kHz offset from the carrier respectively. Also low residual phase noise narrow band tuning and high power handling phase shifters are reported for the use in oscilIator. Two oscillators at C-Band (4.2 GHz and 4.6 GHz) based on ceramic resonators are described. The 4.2 GHz Oscillator provides a phase noise of -153 dBc/ Hz at 10 kHz and -128 dBc/ Hz at 1 kHz offset from the carrier, which is the lowest reported in literature for that type of oscillators. The 4.6 GHz oscillator phase noise is -149 d. Bc/Hz at 10 kHz and -119.2 d. Bc/Hz at 1 kHz offsets respectively. Both oscillators used the same configuration and the same amplification devices and topology. The improved performance is mainly due to the use of low residual phase noise silicon bipolar amplifiers operated in a push pull configuration, where in literature amplifiers employing SiGe HBTs have been used.
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Books on the topic "Phase noise"

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Corporation, Ontario Waste Management, and S.S. Wilson and Associates, eds. Site assessment phase 4B, noise. Toronto: The Corporation, 1987.

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Low phase noise microwave oscillator design. Boston: Artech House, 1991.

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Brandonisio, Francesco, and Michael Peter Kennedy. Noise-Shaping All-Digital Phase-Locked Loops. Cham: Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-03659-5.

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Rubiola, Enrico. Phase noise and frequency stability in oscillators. New York: Cambridge University Press, 2008.

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Cohn, Louis F. Special noise barrier applications: Final report, Phase II. [Olympia, Wash.]: Washington State Dept. of Transportation, Washington State Transportation Commission, Planning and Programming Service Center, in cooperation with the United States Dept. of Transportation, Federal Highway Administration, 1995.

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Bowlby, William, Rennie Williamson, Darlene Reiter, Clay Patton, Geoffrey Pratt, Ken Kaliski, Karl Washburn, et al. Field Evaluation of Reflected Noise from a Single Noise Barrier�"Phase 1. Washington, D.C.: Transportation Research Board, 2016. http://dx.doi.org/10.17226/23457.

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Cohn, Louis F. Special noise barrier applications, Phase III: Technical report. Olympia, Wash: Washington State Dept. of Transportation, 1996.

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Cohn, Louis F. Special noise barrier applications, Phase III: Final report. Olympia, Wash: Washington State Dept. of Transportation, 1996.

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Zhao, Feng, and Fa Foster Dai. Low-Noise Low-Power Design for Phase-Locked Loops. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-12200-7.

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S, Preisser John, and United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch., eds. Location of noise sources using a phase-slope method. [Washington, D.C.]: National Aeronautics and Space Administration, Scientific and Technical Information Branch, 1985.

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Book chapters on the topic "Phase noise"

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Encinas, J. B. "Noise." In Phase Locked Loops, 94–101. Boston, MA: Springer US, 1993. http://dx.doi.org/10.1007/978-1-4615-3064-0_6.

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Weik, Martin H. "phase noise." In Computer Science and Communications Dictionary, 1261. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/1-4020-0613-6_13927.

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Brennan, Paul V. "Noise Performance." In Phase-Locked Loops, 76–89. London: Macmillan Education UK, 1996. http://dx.doi.org/10.1007/978-1-349-14006-0_5.

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Gardiner, Crispin W. "Phase Space Methods." In Quantum Noise, 99–139. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-662-09642-0_4.

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Gardiner, Crispin W., and Peter Zoller. "Phase Space Methods." In Quantum Noise, 90–129. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-662-04103-1_4.

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Stephens, Donald R. "Phase Noise Analysis." In Phase-Locked Loops for Wireless Communications, 349–69. Boston, MA: Springer US, 1998. http://dx.doi.org/10.1007/978-1-4615-5717-3_12.

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Hall, Michael J. W. "Phase and Noise." In Quantum Communications and Measurement, 53–59. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4899-1391-3_5.

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Parrondo, Juan M. R., and Christian Van Den Broeck. "Noise Induced Phase Transitions." In Nonlinear Phenomena and Complex Systems, 157–66. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-009-0239-8_15.

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Meninger, Scott. "Phase Noise and Jitter." In Integrated Circuits and Systems, 139–81. Boston, MA: Springer US, 2009. http://dx.doi.org/10.1007/978-1-4419-0261-0_5.

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Long, Stephen I. "Low Phase Noise Oscillators." In Communication Electronics: RF Design with Practical Applications using Pathwave/ADS Software, 399–416. New York: River Publishers, 2023. http://dx.doi.org/10.1201/9781032629773-15.

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Conference papers on the topic "Phase noise"

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Cao, Liangcai, Zhang Wenhui, Guofan Jin, David Brady, and Hua Zhang. "Noise reduction in digital holography based on a filtering algorithm." In Quantitative Phase Imaging IV, edited by Gabriel Popescu and YongKeun Park. SPIE, 2018. http://dx.doi.org/10.1117/12.2288729.

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Gureyev, Timur, David M. Paganin, Alex Kozlov, and Harry Quiney. "Spatial resolution and signal-to-noise ratio in x-ray imaging." In Quantitative Phase Imaging V, edited by Gabriel Popescu and YongKeun Park. SPIE, 2019. http://dx.doi.org/10.1117/12.2511608.

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Khoury, J. A., A. M. Biernacki, Charles L. Woods, and M. Cronin-Golomb. "Multiplicative to Additive Speckle Noise Conversion via Phase Cancellation with Photorefractive Phase Conjugators." In Photorefractive Materials, Effects, and Devices II. Washington, D.C.: Optica Publishing Group, 1991. http://dx.doi.org/10.1364/pmed.1991.tub4.

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Abstract:
A new technique for dealing with multiplicative complex speckle noise on coherently imaged amplitude objects is presented. This technique uses phase cancellation via quadratic nonlinearity to convert the multiplicative noise into additive noise on the Fourier spectrum. This is accomplished using a noisy image as the pump and a clean planar reference beam as the probe in a degenerate four-wave mixing phase conjugator. The counterpropagating pump is provided by the phase conjugate of the noisy image from a total internal reflection self-pumped phase conjugator whose input is the noisy image transmitted through the first crystal. The phase conjugate output is read off from the clean probe; the remaining noise on the Fourier spectrum of the output image is additive and can be removed by nonlinear filtering in the Fourier plane [1].
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Walls, Fred L. "Phase noise metrology." In SPIE's First International Symposium on Fluctuations and Noise, edited by Laszlo B. Kish, Frederick Green, Giuseppe Iannaccone, and John R. Vig. SPIE, 2003. http://dx.doi.org/10.1117/12.498215.

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Zakka-Bajjani, E., J. Dufouleur, P. Roche, D. C. Glattli, A. Cavanna, Y. Jin, F. Portier, Massimo Macucci, and Giovanni Basso. "High frequency shot noise of phase coherent conductors." In NOISE AND FLUCTUATIONS: 20th International Conference on Noice and Fluctuations (ICNF-2009). AIP, 2009. http://dx.doi.org/10.1063/1.3140487.

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HASHIMOTO, T., M. INOUE, and S. HATANO. "PHASE EFFECT ON ROUGHNESS SENSATION OF COMPLEX TONES." In Inter-Noise 1996. Institute of Acoustics, 2024. http://dx.doi.org/10.25144/19852.

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CARTER, NL, RFS JOB, R. TAYLOR, P. PEPLOE, and S. MORELL. "PROGRESS REPORT ON SYDNEY AIRPORT HEALTH STUDIES PHASE 1." In Inter-Noise 1996. Institute of Acoustics, 2024. http://dx.doi.org/10.25144/19674.

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Bao, Yuan, Hongwen Lin, Yuru Li, Jianping Li, Zanhong Wu, and Zhaohui Li. "Phase noise estimation based on direct detection using phase noise to intensity noise conversion." In 2013 12th International Conference on Optical Communications and Networks (ICOCN). IEEE, 2013. http://dx.doi.org/10.1109/icocn.2013.6617178.

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Gribaldo, Sébastien, Laurent Bary, and Olivier Llopis. "SiGe HBT Nonlinear Phase Noise Modeling." In NOISE AND FLUCTUATIONS: 19th International Conference on Noise and Fluctuations; ICNF 2007. AIP, 2007. http://dx.doi.org/10.1063/1.2759643.

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Daneshrad, Babak, and Weijun Zhu. "Phase noise suppression in MIMO OFDM systems with incoherent phase noise." In MILCOM 2011 - 2011 IEEE Military Communications Conference. IEEE, 2011. http://dx.doi.org/10.1109/milcom.2011.6127706.

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Reports on the topic "Phase noise"

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Pei, Xiaomin. RHIC RF phase noise with phae loop feedback. Office of Scientific and Technical Information (OSTI), November 1993. http://dx.doi.org/10.2172/1118890.

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Doerry, Armin W. Radar Receiver Oscillator Phase Noise. Office of Scientific and Technical Information (OSTI), April 2018. http://dx.doi.org/10.2172/1528837.

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Schaffold, K. Phase Noise Measurements in SLAC Linac. Office of Scientific and Technical Information (OSTI), September 2004. http://dx.doi.org/10.2172/833110.

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Kerr, James D., and David W. McClung. Low Noise Borehole Triaxial Seismometer Phase II. Office of Scientific and Technical Information (OSTI), November 2006. http://dx.doi.org/10.2172/894603.

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Frey, Michael, and Emil Simiu. Noise-induced chaos and phase space flux:. Gaithersburg, MD: National Institute of Standards and Technology, 1992. http://dx.doi.org/10.6028/nist.ir.4791.

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Okusaga, Olukayode K. Photonic Delay-line Phase Noise Measurement System. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada553302.

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Camparo, J. C. Conversion of Laser Phase Noise to Amplitude Noise in an Optically Thick Vapor. Fort Belvoir, VA: Defense Technical Information Center, March 2000. http://dx.doi.org/10.21236/ada376380.

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Azizoglu, Murat, and Pierre A. Humblet. Envelope Detection of Orthogonal Signals with Phase Noise. Fort Belvoir, VA: Defense Technical Information Center, December 1990. http://dx.doi.org/10.21236/ada458093.

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Getaneh, Mesfin. Phase Noise Measurement in PEP II and the Linac. Office of Scientific and Technical Information (OSTI), September 2003. http://dx.doi.org/10.2172/815643.

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Matsakis, Demetrios, Mark Lee, Rolf Dach, Urs Hugentobler, and Z. Jiang. GPS Carrier Phase Analysis Noise on the USNO-PTB Baselines. Fort Belvoir, VA: Defense Technical Information Center, January 2006. http://dx.doi.org/10.21236/ada457454.

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