Title :
Wiener solution for the broadband Griffiths-Jim beamformers
Author :
Claesson, I. ; Nordholm, S. ; Eriksson, P.
Abstract :
The problem of finding the Weiner filters for a wideband adaptive beamformer is treated. Explicit expressions are given for the filters and the error power spectrum in the frequency domain. The expressions are simple to program and make it possible to investigate superresolution for wideband signals and to determine sufficient lengths of finite impulse response filters in adaptive arrays. The Griffiths-Jim (1982) structure implies that the ordinary LMS algorithm can be used without constraints.<>
Keywords :
antenna phased arrays; antenna radiation patterns; digital filters; spectral analysis; FIR; LMS algorithm; Weiner filters; Wiener solution; adaptive arrays; broadband Griffiths-Jim beamformers; error power spectrum; filter length; finite impulse response filters; frequency domain; superresolution; wideband adaptive beamformer; wideband signals; Adaptive arrays; Delay; Finite impulse response filter; Frequency domain analysis; Jamming; Power filters; Power generation; Signal resolution; Wideband; Wiener filter;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115083
