Prevention of signal cancellation in an adaptive nulling problem

S. Park, T. K. Sarkar

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


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.

Original languageEnglish (US)
Article numberSP970306
Pages (from-to)95-102
Number of pages8
JournalDigital Signal Processing: A Review Journal
Issue number2
StatePublished - 1998

ASJC Scopus subject areas

  • Artificial Intelligence
  • Signal Processing
  • Applied Mathematics
  • Electrical and Electronic Engineering
  • Computer Vision and Pattern Recognition
  • Statistics, Probability and Uncertainty
  • Computational Theory and Mathematics


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