Parallel implementation of wideband MVDR beamforming on multi-DSP for sonar system

Author

Xuelian, Jin ; Yixin, Yang ; Yang, Shi ; Xiaoyu, Wang

Author_Institution

Sch. of Marine Technol., Northwestern Polytech. Univ., Xi´´an, China

fYear

2011

fDate

14-16 Sept. 2011

Firstpage

1

Lastpage

4

Abstract

In this paper, a multi-DSP parallel system based on ADSP-TS201 is designed, and a method of wideband minimum variance distortionless response (MVDR) beamforming implemented on the parallel system is presented, which is based on incoherent signal subspace processing, to solve the problem of direction of arrival (DOA) estimation for wideband incoherent acoustic sources. The memory allocation of ADSP-TS201 is discussed. The network structure of the parallel processing system is proposed and the procedure of data processing is described in detail. An iteration method to seek the complex matrix inversion is applied to fit the DSP architecture. An experiment is given to verify the performance of the DSP system, and the effectiveness of the designed parallel processing system is demonstrated by the results.

Keywords

array signal processing; digital signal processing chips; direction-of-arrival estimation; sonar signal processing; ADSP-TS201; complex matrix inversion; direction-of-arrival estimation; incoherent signal subspace processing; memory allocation; minimum variance distortionless response; multi-DSP parallel system; sonar system; wideband MVDR beamforming; wideband incoherent acoustic sources; Array signal processing; Digital signal processing; Direction of arrival estimation; Estimation; Parallel processing; Wideband; ADSP-TS201; DOA estimation; multi-DSP parallel system; wideband MVDR beamforming;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on

Conference_Location

Xi´an

Print_ISBN

978-1-4577-0893-0

Type

conf

DOI

10.1109/ICSPCC.2011.6061554

Filename

6061554