Title :
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
fDate :
Oct. 30 1995-Nov. 1 1995
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;
Conference_Titel :
Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-7370-2
DOI :
10.1109/ACSSC.1995.540650
