A two-sensor digital power inversion array

Author

Mow, Matthew A. ; Kahn, Mark F.

Author_Institution

Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA

Volume

1

fYear

1995

fDate

Oct. 30 1995-Nov. 1 1995

Firstpage

750

Abstract

A digital two-sensor power inversion array (PIA) is proposed for extraction of a weak communication signal in the presence of a strong cochannel interferer. For this environment a closed form solution for the SINR of the PIA output is derived in terms of the signal powers, angles of arrival and sensor spacing. Using this formula the performance of the PIA is evaluated numerically. These results are verified with simulations of the PIA in an environment containing an FM signal in the presence of a strong TV interferer. In this environment, the PIA achieves comparable performance to a CMA beamformer, while requiring less computational expense and having no restrictions on signal modulus.

Keywords

direction-of-arrival estimation; CMA beamformer; FM signal; PIA output; SINR; adaptive beamforming; angles of arrival; closed form solution; performance; sensor spacing; signal modulus; signal powers; simulations; strong TV interferer; strong cochannel interferer; two-sensor digital power inversion array; weak communication signal extraction; Adaptive filters; Array signal processing; Calibration; Closed-form solution; Filtering; Interchannel interference; Narrowband; Navigation; Signal to noise ratio; TV;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-8186-7370-2

Type

conf

DOI

10.1109/ACSSC.1995.540650

Filename

540650