NDLI: Coherent interference suppression with an adaptive array using spatial affine projection algorithm

Content Provider	IEEE Xplore Digital Library
Author	Zheng, Y.R. Goubran, R.A. El-Tanany, M.
Copyright Year	2000
Description	Author affiliation: Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, Ont., Canada (Zheng, Y.R.)
Abstract	This paper proposes a new algorithm, namely the spatial affine projection (SAP) algorithm, for adaptive array beamforming in the presence of multiple coherent interferers. The SAP algorithm applies the affine projection (AP) algorithm to adaptive beamformers in the space domain. Combining the decorrelation property of the AP algorithm with that of the spatial smoothing (SS) algorithm, the SAP algorithm achieves coherent interference suppression and fast convergence simultaneously. Computer simulation shows that the SAP algorithm incorporating a subtractive preprocessor (SP) outperforms the existing algorithms by placing deeper nulls and converging faster. The convergence of the SAP algorithm is comparable to that of the SS scheme using the RLS algorithm while the computational complexity of the SAP algorithm is close to that of the SS scheme using the normalized LMS algorithm.
Starting Page	105
Ending Page	109
File Size	424306
Page Count	5
File Format	PDF
ISBN	0780365070
ISSN	10903038
DOI	10.1109/VETECF.2000.886639
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-09-24
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference suppression Adaptive arrays Convergence Array signal processing Decorrelation Smoothing methods Computer simulation Resonance light scattering Computational complexity Least squares approximation
Content Type	Text
Resource Type	Article

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