Robust algorithm for combating look direction error problems

C. C. Ko, Huan Liu

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A simple and fast zero tracking algorithm for adaptive arrays with large look direction errors is presented and investigated. Basically, the algorithm is based on adjusting the complex zeroes of a power inversion array in a time-multiplexed manner to track all the sources in the environment. To preserve the desired signal which is supposed to be closest to the look direction of 0°, the algorithm removes the zero with the shortest distance to ej0 so that the directional response consists of only nulls steered at the jammers. When compared with the least mean square (LMS) algorithm employing zeroth and first-order look direction constraints, the new algorithm has about the same implementation complexity, is considerably faster, and possesses a much better signal-to-noise ratio (SNR) performance when the look direction is erroneous.

Original languageEnglish (US)
Pages (from-to)1043-1053
Number of pages11
JournalIEEE Transactions on Aerospace and Electronic Systems
Volume31
Issue number3
DOIs
StatePublished - Jul 1995
Externally publishedYes

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Signal to noise ratio

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Aerospace Engineering
  • Electrical and Electronic Engineering

Cite this

Robust algorithm for combating look direction error problems. / Ko, C. C.; Liu, Huan.

In: IEEE Transactions on Aerospace and Electronic Systems, Vol. 31, No. 3, 07.1995, p. 1043-1053.

Research output: Contribution to journalArticle

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