Title :
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
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;
Conference_Titel :
Signal Processing, Communications and Computing (ICSPCC), 2011 IEEE International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4577-0893-0
DOI :
10.1109/ICSPCC.2011.6061554
