Performance study of the optimal beamformer in the M-sequence receiving system

Author

Zhang, Zhaohong ; Birdsall, Theodore

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA

fYear

1990

fDate

3-6 Apr 1990

Firstpage

2867

Abstract

A comprehensive study of the performance of the optimal adaptive beamformer in the M-sequence receiving system is presented. Two receiving system arrangements were considered: (1) adaptive beamformer precedes the matched filtering (APM), and (2) matched filtering precedes the adaptive beamformer (MPA). The optimal adaptive beamformer was constructed through the Bayesian approach. Theoretical and Monte Carlo simulation analysis showed that at high array signal-to-noise ratios, since the adaptive beamformer could converge to the steady state, the order of processing did not make a difference in the overall system performance. However, the convergence of the adaptive beamformer at low array signal-to-noise ratios was affected by the change in signal environment due to the change of the order of processing. Simulation showed that the performance of the MPA system had a lower threshold in the array signal-to-noise ratio

Keywords

Bayes methods; Monte Carlo methods; antenna phased arrays; antenna theory; matched filters; receiving antennas; Bayesian approach; M-sequence receiving system; Monte Carlo simulation analysis; adaptive beamformer; array signal-to-noise ratios; matched filtering; optimal beamformer; signal environment; threshold; Adaptive arrays; Adaptive filters; Bayesian methods; Filtering; Matched filters; Performance analysis; Signal analysis; Signal to noise ratio; Steady-state; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1990. ICASSP-90., 1990 International Conference on

Conference_Location

Albuquerque, NM

ISSN

1520-6149

Type

conf

DOI

10.1109/ICASSP.1990.116224

Filename

116224