The Performance of an LMS (Least Mean Square) Adaptive Array with Frequency Hopped Signals.

Abstract

This report examines the performance of an LMS adaptive array with a frequency hopped, spread spectrum desired signal and a CW interference signal. It is shown that frequency hopping has several effects on an adaptive array. It causes the array to modulate both the amplitude and the phase of the received signal. Also, it causes the array output SINR (signal-to-interference-plus-noise ratio) to vary with time and thus increases the bit error probability for the received signal. Typical curves of the desired signal modulation and the time-varying SINR at the array output are presented. It is shown how the array performance depends on hopping frequency, frequency jump size, interference frequency, signal arrival angles and signal powers.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADA136461

Entities

People

  • L. Acar
  • R. T. Compton Jr.

Organizations

  • Ohio State University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Algorithms
  • Applied Mathematics
  • Bandwidth
  • Communication Systems
  • Differential Equations
  • Dwell Time
  • Electrical Engineering
  • Engineering
  • Equations
  • Frequency
  • Frequency Agility
  • Frequency Shift
  • Government Procurement
  • Phase Modulation
  • Phase Shift
  • Probability
  • Spread Spectrum

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.