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Prevention of Signal Cancellation in an Adaptive Nulling Problem

โœ Scribed by S Park; T.K Sarkar

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
132 KB
Volume
8
Category
Article
ISSN
1051-2004

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โœฆ Synopsis

Signal cancellation is a serious problem in adaptive nulling. The problem arises when the actual direction of arrival of the signal is slightly off the assumed direction of arrival. The adaptive algorithms consider the actual signal a jammer as the direction of arrival is not exactly specified. In this paper, it is shown how to prevent signal cancellation when the direction of arrival is not known exactly. Multiple look direction constraints are used to prevent signal cancellation. This paper outlines the principles and illustrates how this concept can be incorporated in an adaptive nulling situation using a deterministic direct data domain approach. 1998 Academic Press

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