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| Bimonthly Since 1986 |
ISSN 1004-9037
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| Publication Details |
Edited by: Editorial Board of Journal of Data Acquisition and Processing
P.O. Box 2704, Beijing 100190, P.R. China
Sponsored by: Institute of Computing Technology, CAS & China Computer Federation
Undertaken by: Institute of Computing Technology, CAS
Published by: SCIENCE PRESS, BEIJING, CHINA
Distributed by:
China: All Local Post Offices
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09 May 2023, Volume 38 Issue 3
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Abstract
In this paper, we analyse a generalised side lobe canceller structure which has two parallel paths, one for conventional beamformer and the other for adaptive beamformer. The conventional beamformer path is subjected to the specific constraints while the adaptive beam path is cascade of a fixed signal blocking matrix and a set of tapped- delay line filters. It employs a gradient -based weight adjustment algorithm. Blocking matrix does not allow incident waves to reach tapped delay lines. So, unconstrained Least mean square (LMS) Algorithm is used to adapt the delay line weights. This paper has analyzed the effect on side lobes levels (-13.2dB) by increasing the number of elements in the array.
Keyword
SLL, LMS, HPBW, FNBW.
PDF Download (click here)
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