Academic literature on the topic 'Adaptive Cancelers'

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Journal articles on the topic "Adaptive Cancelers"

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Samiei, Aria, and Hossein Hashemi. "A Bidirectional Neural Interface SoC With Adaptive IIR Stimulation Artifact Cancelers." IEEE Journal of Solid-State Circuits 56, no. 7 (2021): 2142–57. http://dx.doi.org/10.1109/jssc.2021.3056040.

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Rahman, Muhammad Zia Ur, Rafi Ahamed Shaik, and D. V. Rama Koti Reddy. "Efficient and Simplified Adaptive Noise Cancelers for ECG Sensor Based Remote Health Monitoring." IEEE Sensors Journal 12, no. 3 (2012): 566–73. http://dx.doi.org/10.1109/jsen.2011.2111453.

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Miranda, Ricardo Kehrle, João Paulo C. L. da Costa, and Felix Antreich. "High accuracy and low complexity adaptive Generalized Sidelobe Cancelers for colored noise scenarios." Digital Signal Processing 34 (November 2014): 48–55. http://dx.doi.org/10.1016/j.dsp.2014.07.015.

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Rahman, Muhammad Zia Ur, G. V. S. Karthik, S. Y. Fathima, and A. Lay-Ekuakille. "An efficient cardiac signal enhancement using time–frequency realization of leaky adaptive noise cancelers for remote health monitoring systems." Measurement 46, no. 10 (2013): 3815–35. http://dx.doi.org/10.1016/j.measurement.2013.07.009.

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Delmas, J. P. "Adaptive harmonic jammer canceler." IEEE Transactions on Signal Processing 43, no. 10 (1995): 2323–31. http://dx.doi.org/10.1109/78.469857.

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Kim. "A Robust Frequency-Domain Multi-Reference Narrowband Adaptive Noise Canceller." Journal of the Acoustical Society of Korea 34, no. 2 (2015): 163. http://dx.doi.org/10.7776/ask.2015.34.2.163.

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Moulds, Clinton W. "Adaptive vibration canceller." Journal of the Acoustical Society of America 90, no. 1 (1991): 622. http://dx.doi.org/10.1121/1.401222.

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Moulds, Clinton W. "Multivariable adaptive vibration canceller." Journal of the Acoustical Society of America 92, no. 1 (1992): 627. http://dx.doi.org/10.1121/1.404091.

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Gerlach, K. "Adaptive canceler and pulse compressor interactions." IEEE Transactions on Aerospace and Electronic Systems 27, no. 2 (1991): 331–42. http://dx.doi.org/10.1109/7.78307.

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I., SALEM, HANAFY A., HUSSEIN G., and MOUFID D. "ADAPTIVE SPACE—TIME SIDELOBE CANCELLER." International Conference on Electrical Engineering 2, no. 2 (1999): 146–57. http://dx.doi.org/10.21608/iceeng.1999.62302.

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Dissertations / Theses on the topic "Adaptive Cancelers"

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Mitchell, Daniel Allan. "Interference Mitigation in Radio Astronomy." Thesis, The University of Sydney, 2004. http://hdl.handle.net/2123/693.

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This thesis investigates techniques and algorithms for mitigating radio frequency interference (RFI) affecting radio astronomy observations. In the past radio astronomy has generally been performed in radio-quiet geographical locations and unused parts of the radio spectrum, including small protected frequency bands. The increasing use of the entire spectrum and global transmitters such as satellites are forcing the astronomy community to begin implementing active interference cancelling. The amount of harmful interference affecting observations will also increase as future instruments such as
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Mitchell, Daniel Allan. "Interference Mitigation in Radio Astronomy." University of Sydney. Physics, 2004. http://hdl.handle.net/2123/693.

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This thesis investigates techniques and algorithms for mitigating radio frequency interference (RFI) affecting radio astronomy observations. In the past radio astronomy has generally been performed in radio-quiet geographical locations and unused parts of the radio spectrum, including small protected frequency bands. The increasing use of the entire spectrum and global transmitters such as satellites are forcing the astronomy community to begin implementing active interference cancelling. The amount of harmful interference affecting observations will also increase as future instruments such as
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Picciolo, Michael L. "Robust Adaptive Signal Processors." Diss., Virginia Tech, 2003. http://hdl.handle.net/10919/26993.

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Standard open loop linear adaptive signal processing algorithms derived from the least squares minimization criterion require estimates of the N-dimensional input interference and noise statistics. Often, estimated statistics are biased by contaminant data (such as outliers and non-stationary data) that do not fit the dominant distribution, which is often modeled as Gaussian. In particular, convergence of sample covariance matrices used in block processed adaptive algorithms, such as the Sample Matrix Inversion (SMI) algorithm, are known to be affected significantly by outliers, causing undu
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Zerguine, Azzedine. "Algorithms and structures for long adaptive echo cancellers." Thesis, Loughborough University, 1996. https://dspace.lboro.ac.uk/2134/22076.

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The main theme of this thesis is adaptive echo cancellation. Two novel independent approaches are proposed for the design of long echo cancellers with improved performance. In the first approach, we present a novel structure for bulk delay estimation in long echo cancellers which considerably reduces the amount of excess error. The miscalculation of the delay between the near-end and the far-end sections is one of the main causes of this excess error. Two analyses, based on the Least Mean Squares (LMS) algorithm, are presented where certain shapes for the transitions between the end of the nea
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Sankaran, Sundar G. "Implementation and evaluation of echo cancellation algorithms." Thesis, This resource online, 1996. http://scholar.lib.vt.edu/theses/available/etd-02132009-172004/.

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Campbell, David Kemp. "Adaptive Beamforming Using a Microphone Array for Hands-Free Telephony." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/31294.

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This thesis describes the design and implementation of a 4-channel microphone array that is an adaptive beamformer used for hands-free telephony in a noisy environment. The microphone signals are amplified, then sent to an A/D converter. The microprocessor board takes the data from the 4 channels and utilizes digital signal processing to determine the direction-of-arrival of the sources and create an output which 'steers' the microphone array to the desired look direction while trying to minimize the energy of interference sources and noise. All of the processing for this thesis will be don
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Mackey, Richard Paul. "An asynchronous, single-chip, LMS based, adaptive fir echo canceller." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/291387.

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An asynchronous, single-chip, high-speed communication adaptive echo canceller was developed during this research. Adaptation is based on the LMS algorithm with power-of-two convergence factor. Cancellation is performed by a 128-coefficient adaptive finite impulse response filter whose coefficients are updated every cycle. The LMS power-of-two update equations were modified to allow a pipelined implementation. Pipelining the adaptation and echo estimation operations enabled hardware minimization, a high sampling rate, and no increase in convergence time. The resulting circuit updates the filte
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Yamazaki, Ken Carleton University Dissertation Engineering Electrical. "Convergence behaviour of a jointly-adaptive transversal and memory- based echo canceller." Ottawa, 1989.

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Brophy, Sean G. (Sean Gregory) Carleton University Dissertation Engineering Electrical. "Synchronization and its effect on adaptive echo canceller performance in the digital subscriber loop environment." Ottawa, 1985.

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Karim, Md Anisul. "Weighted layered space-time code with iterative detection and decoding." Thesis, The University of Sydney, 2006. http://hdl.handle.net/2123/1095.

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Multiple antenna systems are an appealing candidate for emerging fourth-generation wireless networks due to its potential to exploit space diversity for increasing conveyed throughput without wasting bandwidth and power resources. Particularly, layered space-time architecture (LST) proposed by Foschini, is a technique to achieve a significant fraction of the theoretical capacity with a reasonable implementation complexity. There has been a great deal of challenges in the detection of space-time signal; especially to design a low-complexity detector, which can efficiently remove multi-layer in
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Books on the topic "Adaptive Cancelers"

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Zerguine, Azzedine. Algorithms and structures for long adaptive echo cancellers. 1996.

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Naval Research Laboratory (U.S.), ed. Adaptive digital processing investigation of DFT subbanding vs transversal filter canceler. Naval Research Laboratory, 1986.

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Book chapters on the topic "Adaptive Cancelers"

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Cantoni, A., and L. C. Godara. "The Effect of Bandwidth on the Performance of a Postbeamformer Interference Canceller." In Adaptive Methods in Underwater Acoustics. Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5361-1_36.

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Jatav, Ajay, Ruchi Mehra, Tannu Bala, et al. "A Novel Technique for an Adaptive Feedback Canceller for Hearing Aids." In Advances in Intelligent Systems and Computing. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-8237-5_5.

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Das, Vineeta, Asutosh Kar, and Mahesh Chandra. "Advanced Adaptive Algorithms for Double Talk Detection in Echo Cancellers: A Technical Review." In Advances in Intelligent Systems and Computing. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-12012-6_33.

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Paleologu, C., A. A. Enescu, and S. Ciochina. "A Network Echo Canceler Based on a SRF QRD-LSL Adaptive Algorithm Implemented on Motorola StarCore SC140 DSP." In Telecommunications and Networking - ICT 2004. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-27824-5_76.

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Tejasri, P. N. S., K. Anusha, K. Sangeet Kumar, Nukella Venkatesh, and Y. Yamini Devi. "Interference-Normalized Least Mean Square Algorithm: A Comparative Study." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde221241.

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A general least mean square interference technique is provided for effective adaptive filtering. The gradient adaptive learning rate methodology can now handle non-stationary data with the Interference normalised least mean square technique. Because of issues like duplicate talk and echo route variance, echo cancellation is made more difficult because the learning rate must be adjusted. Frequency domain echo cancelers learn at different rates, which can be altered in a novel fashion. Normalized least mean square method normalised learning rate under noise is used to calculate an optimal learning rate. This double-talk detection technique exceeds the competition while also being incredibly simple to implement. A number of least mean square (LMS)-type algorithms have been investigated in place of their recursive equivalents of IVM or TLS/DLS, which involve large calculations. As a result of these findings, we provide a consistent LMS type technique for the data least squares estimate problem. This unique approach normalizes step size and estimates the variance of the noise in a heuristic manner using the geometry of the mean squared error function, resulting in rapid convergence and robustness against environmental noise.
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Minami, Shigenobu. "A Stereo Acoustic Echo Canceller Using Cross-Channel Correlation." In Adaptive Filtering. InTech, 2011. http://dx.doi.org/10.5772/16341.

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Hudson, Dr Simon. "Adapting to lockdown." In COVID-19 and Travel. Goodfellow Publishers, 2020. http://dx.doi.org/10.23912/9781911635703-4432.

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By mid-April 2020, a third of the global population was under full or partial lockdown. While ‘lockdown’ was not a technical term used by public-health officials, it referred to anything from mandatory geographic quarantines to non- mandatory recommendations to stay at home, closures of certain types of businesses, or bans on events and gatherings. During this lockdown period, the travel sector worldwide continued to experience a loss of business. For example, Spain’s famous annual San Fermin bull-running festival, which usually draws thousands of participants, was canceled because of the coronavirus crisis. “As expected as it was, it still leaves us deeply sad,” said acting mayor Ana Elizalde in a statement from the local Pamplona town hall. The July festival, which was made famous in Ernest Hemingway’s novel The Sun Also Rises, has seldom been canceled in its history. Other major European tourist events were canceled, including Oktoberfest, the famous annual German beer-drinking festival which traditionally sees six million people travel to Munich.
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Lee, Junghsi, and G. K. Ma. "On the Fast RLS Adaptive IIR Ghost Canceller." In Signal Processing of HDTV. Elsevier, 1994. http://dx.doi.org/10.1016/b978-0-444-81844-7.50041-3.

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Li, T., and T. Li. "PLL-based adaptive power line interference canceller for ECG signal." In Multimedia, Communication and Computing Application. CRC Press, 2015. http://dx.doi.org/10.1201/b18512-63.

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Weruaga-Prieto, Luis, Jesús Cid-Sueiro, and Aníbal R. Figueiras-Vidal. "A FAST RLS LOOK-UP-TABLE PLUS FIR ADAPTIVE ECHO CANCELLER." In Signal Processing. Elsevier, 1992. http://dx.doi.org/10.1016/b978-0-444-89587-5.50106-7.

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Conference papers on the topic "Adaptive Cancelers"

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Karthik, G. V. S., and S. J. Sugumar. "High resolution Cardiac signal extraction using novel adaptive noise cancelers." In 2013 International Multi-Conference on Automation, Computing, Communication, Control and Compressed Sensing (iMac4s). IEEE, 2013. http://dx.doi.org/10.1109/imac4s.2013.6526474.

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Khaliq, Aleem, Athar Waseem, M. Fahad Munir, and Rehan Ahmad. "Comparison of adaptive noise cancelers for ECG signals in wireless biotelemetry system." In 2016 International Conference on Intelligent Systems Engineering (ICISE). IEEE, 2016. http://dx.doi.org/10.1109/intelse.2016.7475117.

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Bruns, D., S. Esposito, J. Farinato, and R. Ragazzoni. "Fast Steering Mirror Performance." In Adaptive Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/adop.1996.athc.16.

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A fast steering mirror actuated with electromagnetic voice coils has been designed and built, shown in Figure 1. The mirror diameter is 100 mm, and made with 19 mm thick fused silica. Since only 1 milliradian angular deflections are required in typical astronomical applications, the mirror is held in place with a stiff, two-dimensional flexural pivot. Voice coil actuators are arranged in push-pull pairs about two orthogonal axes, resulting in a high torque against the mirror, but negligible piston excitation. To further control the system performance, a reaction mass inside the optical head ca
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Theverapperuma, Lalin, and Jon Kindred. "Adaptive Feedback Canceller: Entrainment." In 2006 IEEE 12th Digital Signal Processing Workshop & 4th IEEE Signal Processing Education Workshop. IEEE, 2006. http://dx.doi.org/10.1109/dspws.2006.265384.

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Barnes, T. H., G. T. Bold, and T. G. Haskell. "Feedback Interferometry for Aberration Correction." In Adaptive Optics. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/adop.1995.thb4.

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Feedback interferometers, in which the output fringe pattern is fed back to modulate the phase-difference in the interferometer via a spatial optical phase modulator, have been used for investigations of spatial structure formation1, optical memories2, and to achieve unambiguous fringe phase display for optical testing3. If these interferometers are operated in the negative feedback regime, it is possible to obtain output fringe patterns where intensity is almost linearly dependant on the physical path-difference in the system. This intensity distribution is fed back to a phase modulator in th
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Chul-Jai Lee and Hong Wang. "An adaptive multiband clutter polarization canceler." In IEEE Antennas and Propagation Society International Symposium 1992 Digest. IEEE, 1992. http://dx.doi.org/10.1109/aps.1992.221776.

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Tiporlini, Valentina, Nghia Nguyen, and Kamal Alameh. "Adaptive noise canceller for magnetocardiography." In 2011 High Capacity Optical Networks and Enabling Technologies (HONET). IEEE, 2011. http://dx.doi.org/10.1109/honet.2011.6149770.

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Theverapperuma, Lalin S., and Jon S. Kindred. "Continuous Adaptive Feedback Canceller Dynamics." In 2006 49th IEEE International Midwest Symposium on Circuits and Systems. IEEE, 2006. http://dx.doi.org/10.1109/mwscas.2006.382136.

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Freund, Isaac. "“1001” Correlations in Random Wave Fields." In Adaptive Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/adop.1996.awd.12.

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The coherence length Λcoh of a random wave field E(x,y) is defined as the characteristic distance over which the whole field, ensemble averaged autocorrelation function μ(Δx)= <E*(x,y)E(x+Δx,y)>/<|E(x,y)|2> decays to zero [1] A natural, indeed universal interpretation is that on length scales larger than Λcoh, different field structures such as maxima, minima, etc. are uncorrelated. Indeed, it is the apparently random distributions of positions, heights, and widths of these features that make the field appear “random”. But as is often the case, appearances can be deceiving, and we
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Miranda, Ricardo Kehrle, Joao Paulo C. L. da Costa, Florian Roemer, Andre L. F. de Almeida, and Giovanni Del Galdo. "Generalized sidelobe cancellers for multidimensional separable arrays." In 2015 IEEE 6th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP). IEEE, 2015. http://dx.doi.org/10.1109/camsap.2015.7383769.

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Reports on the topic "Adaptive Cancelers"

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Gerlach, Karl. A Fast-Converging, Cascaded Adaptive Canceller. Defense Technical Information Center, 2000. http://dx.doi.org/10.21236/ada375754.

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Gabriel, William F. Adaptive Digital Processing Investigation of DFT (Discrete Fourier Transform) Subbanding vs. Transversal Filter Canceler. Defense Technical Information Center, 1986. http://dx.doi.org/10.21236/ada171894.

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