Robust Steerable Frequency Invariant Beamformer Design Based on SRV-CLS

Authors

Suting Chen, 1. Jiangsu Province Key Laboratory of Meteorological Observation and Information Processing in Nanjing University of Information Science & Technology, Nanjing 210044, China;;2. Atmospheric Environment and Equipment Technology Synergy Innovation Center, Nanjing 210044, China;
Zhang Wei, 1. Jiangsu Province Key Laboratory of Meteorological Observation and Information Processing in Nanjing University of Information Science & Technology, Nanjing 210044, China;;

Abstract

Abstract: The frequency invariant beamformer (FIB) has important applications in wideband array signal processing. Conventional FIB design approaches are usually proposed without considering the mismatches in microphone array characteristic, which leads to the performance of the FIBs degrading in practical applications. Therefore, a robust steerable frequency invariant beamformer design approach based on spatial response variation constrained least squares (SRV-CLS) was proposed. It combined the SRV-CLS FIB design approach with classical robust beamforming algorithm, and added the microphone characteristics as robust favor in the cost function. The proposed approach could work well in the presence of microphone mismatches, ensured the frequency invariant of the beamformers in the operating band, and is applicable to arbitrary main lobe width and array geometries.

Recommended Citation

Chen, Suting and Wei, Zhang (2020) "Robust Steerable Frequency Invariant Beamformer Design Based on SRV-CLS," Journal of System Simulation: Vol. 28: Iss. 8, Article 27.
Available at: https://dc-china-simulation.researchcommons.org/journal/vol28/iss8/27

First Page

1898

Revised Date

2015-04-01

DOI Link

https://doi.org/

Last Page

1903

CLC

TP391.9

Recommended Citation

Chen Suting, Zhang Wei. Robust Steerable Frequency Invariant Beamformer Design Based on SRV-CLS[J]. Journal of System Simulation, 2016, 28(8): 1898-1903.