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Robust Adaptive Beamforming Algorithm using Instantaneous Direction of Arrival with Enhanced Noise Suppression Capability

Byung-Jun Yoon, Ivan Tashev, Alex Acero
2007 2007 IEEE International Conference on Acoustics, Speech and Signal Processing - ICASSP '07  
In this paper, we propose a novel adaptive beamforming algorithm with enhanced noise suppression capability.  ...  The proposed algorithm incorporates the sound-source presence probability into the adaptive blocking matrix, which is estimated based on the instantaneous direction of arrival of the input signals and  ...  The proposed algorithm estimates the presence probability of the target signal based on the instantaneous direction of arrival (IDOA) [5] and per frequency bin voice activity detection, which is incorporated  ... 
doi:10.1109/icassp.2007.366634 dblp:conf/icassp/YoonTA07 fatcat:b3g3u5l655deznmyid5h54mvhy

An Adaptive Microphone Array For Optimum Beamforming And Noise Reduction

Gerhard Doblinger
2006 Zenodo  
Publication in the conference proceedings of EUSIPCO, Florence, Italy, 2006  ...  Fertl for supplying the sound recordings, and for the comprehensive study of various postfilter algorithms in his diploma thesis.  ...  In our implementation, delays are either computed for a given direction of arrival or are estimated using the phase transform (PHAT) algorithm [13] .  ... 
doi:10.5281/zenodo.53261 fatcat:4zuqbbz5cjekpl46xhtw6jrg6u

A real-time DOA-based smart antenna processor

A. Kuchar, M. Tangemann, E. Bonek
2002 IEEE Transactions on Vehicular Technology  
Its processing steps include direction-of-arrival (DOA) estimation, user identification, tracking, beamforming, and signal reconstruction.  ...  We designed, built, and tested a real-time processor for a direction-of-arrival-based smart antenna GSM 1800 base station with eight half-wavelength spaced antenna elements.  ...  Its processing steps include direction-of-arrival (DOA) estimation, user identification, tracking, beamforming, and signal reconstruction.  ... 
doi:10.1109/tvt.2002.801737 fatcat:kpigli6h7jgkxguu5w7g2i2xki

Microphone Array Processing for Distant Speech Recognition: From Close-Talking Microphones to Far-Field Sensors

Kenichi Kumatani, John McDonough, Bhiksha Raj
2012 IEEE Signal Processing Magazine  
In particular, we present recent work on acoustic beamforming for DSR, along with experimental results verifying the effectiveness of the various algorithms described here; beginning from a word error  ...  rate (WER) of 14.3% with a single microphone of a 64-channel linear array, our state-of-theart DSR system achieved a WER of 5.3%, which was comparable to that of 4.2% obtained with a lapel microphone.  ...  INTRODUCTION When the signals from the individual sensors of a microphone array with a known geometry are suitably combined, the array functions as a spatial filter capable of suppressing noise, reverberation  ... 
doi:10.1109/msp.2012.2205285 fatcat:h6tz6el73nbgjlttqlvqsgrlcq

Minimum Variance Distortionless Response Beamformer with Enhanced Nulling Level Control via Dynamic Mutated Artificial Immune System

Tiong Sieh Kiong, S. Balasem Salem, Johnny Koh Siaw Paw, K. Prajindra Sankar, Soodabeh Darzi
2014 The Scientific World Journal  
In smart antenna applications, the adaptive beamforming technique is used to cancel interfering signals (placing nulls) and produce or steer a strong beam toward the target signal according to the calculated  ...  Minimum variance distortionless response (MVDR) beamforming is capable of determining the weight vectors for beam steering; however, its nulling level on the interference sources remains unsatisfactory  ...  Acknowledgment This work was supported in part by MOSTI (Ministry of Science, Technology and Innovation, Malaysia) with Project no. 01-02-03-SF0202.  ... 
doi:10.1155/2014/164053 pmid:25003136 pmcid:PMC4070486 fatcat:jcb57f7mpvajdn3or5dlevqvyi

Blind Subband Beamforming With Time-Delay Constraints for Moving Source Speech Enhancement

Zohra Yermeche, Nedelko Grbic, Ingvar Claesson
2007 IEEE Transactions on Audio, Speech, and Language Processing  
Evaluation in a real environment with a moving speaker shows promising results, with suppression levels of up to 16 dB for background noise and interfering (speech) signals, associated to a relatively  ...  The robustness of the time-delay estimation of speech signals in high noise levels is improved by making use of the non-Gaussian nature of speech trough a subband Kurtosis-weighted structure.  ...  This paper presents a new robust blind speech enhancement algorithm.  ... 
doi:10.1109/tasl.2007.903309 fatcat:rlzdq3vac5edjjgsy6dygh3ctq

About Multichannel Speech Signal Extraction and Separation Techniques

Adel Hidri, Souad Meddeb, Hamid Amiri
2012 Journal of Signal and Information Processing  
with suitable innovations.  ...  The extraction of a desired speech signal from a noisy environment has become a challenging issue.  ...  It is worthy to note that the role of the RNC block is to enhance the robustness of the algorithm. However the LCMV Beamformerwas designed to satisfy two sets of linear constraints.  ... 
doi:10.4236/jsip.2012.32032 fatcat:c2edxeqyivfwvczdwzvzhbermu

Steering vector estimation and beamforming under uncertainties

B. Liao, S. C. Chan, K. M. Tsui, Y. J. Chu
2012 2012 IEEE Statistical Signal Processing Workshop (SSP)  
In absence of array uncertainties and with perfect estimate of the direction-of-arrival (DOA) of the desired signal, the steering vector can be determined and used to suppress the interference with any  ...  of conventional adaptive beamforming algorithms, such as the Capon beamformer [2] .  ... 
doi:10.1109/ssp.2012.6319842 dblp:conf/ssp/LiaoCTC12 fatcat:ugdud73wu5bsrpdaycink7jyne

Beamforming Designs Robust to Propagation Model Estimation Errors for Binaural Hearing Aids

Hala As'ad, Martin Bouchard, Homayoun Kamkar-Parsi
2019 IEEE Access  
INDEX TERMS Hearing aids, noise reduction, robust binaural beamformer, source propagation model error, direction of arrival (DOA) estimation error, head related transfer function (HRTF) mismatch, target  ...  This work introduces new binaural beamforming algorithms for hearing aids, with a good robustness to errors in the estimated target source propagation model.  ...  Another robust GSC beamforming approach with enhanced suppression abilities for both isotropic ambient noise and directional interferers has been proposed based on a sound-source presence probability in  ... 
doi:10.1109/access.2019.2932315 fatcat:3ivjttku6bgitdo4v2mgndpv3a

Multichannel Signal Enhancement Algorithms for Assisted Listening Devices: Exploiting spatial diversity using multiple microphones

Simon Doclo, Walter Kellermann, Shoji Makino, Sven Erik Nordholm
2015 IEEE Signal Processing Magazine  
enhancement algorithms are capable of increasing speech intelligibility [1] , especially when the sound sources have different spatial characteristics.  ...  Data-InDepenDent beaMForMIng A simple but popular way for enhancing the target source in ALDs is data-independent beamforming, where the filters w in (4) are designed to enhance sources arriving from the  ... 
doi:10.1109/msp.2014.2366780 fatcat:lzej2y4uwnfgxnsn4hykhabklq

Performance Analysis of LMS, RLS, CMA Algorithms for Beamforming in Smart Antenna Systems

2019 International journal of recent technology and engineering  
In beamforming algorithms, using different techniques complex weights are calculated and applied to the signals from the smart antenna array elements to enhance signals of interest and suppress signals  ...  In this article Least Mean Square(LMS) technique, Recursive Least Square(RLS)technique and Constant Modulus (CMA)technique adaptive beamforming algorithms are implemented, analyzed and compared using MATLAB  ...  ADAPTIVE BEAMFORMING ALGORITHMS If the incident angles of the desired signal arriving at antenna array elements keep varying with respect to time it is required to calculate the optimum array weights instantaneously  ... 
doi:10.35940/ijrte.d4424.118419 fatcat:aztcvtywijcofpbhvxanqt7o5m

Optimum Adaptive Beamforming Techniques
English

2014 International Journal of Research and Applications  
Smart antennas possess the capability of suppressing jamming signal, so they can improve signal to interference plus noise ratio (SINR).  ...  Simulation results are presented to compare the ability of these three algorithms to form beam in the direction of desired signal and place null in the direction of interference signal.  ...  Arrival (DOA) of the source signal, and then this direction information can be utilized in non-blind beam forming algorithms to form beam in the estimated direction.  ... 
doi:10.17812/ijra.1.3(15)2014 fatcat:6bp3p3fpufhevpfivds2zwdx2a

Tradeoff Between Diversity Gain and Interference Suppression in a MIMO MC-CDMA System

Y. Zhang, L.B. Milstein, P.H. Siegel
2005 IEEE Transactions on Communications  
At the receiver, adaptive beamforming reception is adopted to both suppress MAI and combat the fading.  ...  In this paper, the uplink of an asynchronous multi-carrier direct-sequence code-division multiple-access (MC-DS-CDMA) system with multiple antennas at both the transmitter and the receiver is considered  ...  array of size used for adaptive beamforming reception.  ... 
doi:10.1109/tcomm.2005.844963 fatcat:4dbpbflnmvebdc3ylxkrd5sh6m

Analysis of dual-channel ICA-based blocking matrix for improved noise estimation

Yuanhang Zheng, Klaus Reindl, Walter Kellermann
2014 EURASIP Journal on Advances in Signal Processing  
The estimated noise reference is then used to design spectral enhancement filters for the purpose of noise reduction.  ...  The robustness of Directional BSS regarding the localization error for the target source position is verified by experiments.  ...  BMs, (2) the blocking performance if the target source arrives from directions which are different from broadside direction, (3) the robustness against localization errors, and (4) the BSE/speech enhancement  ... 
doi:10.1186/1687-6180-2014-26 fatcat:4murqdqnfzg4pa6oqhnwsuh6he

Adaptive Beamforming for Audio Signal Acquisition [chapter]

Wolfgang Herbordt, Walter Kellermann
2003 Signals and Communication Technology  
This chapter provides an overview of adaptive beamforming techniques for speech and audio signal acquisition.  ...  In particular, we derive optimum beamformers using time-domain least-squares instead of frequency-domain minimum meansquares criteria, and, thereby, are not constrained by the commonly used narrowband  ...  As a computationally very efficient and robust adaptation algorithm, the least-mean-squares (LMS) algorithm [6] is prevalent.  ... 
doi:10.1007/978-3-662-11028-7_6 fatcat:mkpghbhiubh53kbehkb27v6g5a
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