Group Orthogonal Arrays for Elimination of Multiple-Time-Around Echoes in Radars

Abstract

The advantage of interleaved group-orthogonal/group-complementary arrays lies in their property of sidelobe cancellation over multiple range intervals. This results in reduced clutter interference when tracking low-speed targets in clutter. With this waveform, a high PRF can be used to increase energy on target or increase doppler coverage, and allows detection and tracking of targets in multiple-time-around range intervals with cancellation of clutter responses from the principal unambiguous range interval and from other multiple- time-around range intervals. Synthesis procedures of arrays to be interleaved to achieve zero responses in multiple-time-around range intervals are presented in this report, along with examples of the zero response features. References are also given to group-complementary coding and other synthesis techniques of orthogonal binary arrays.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1987
Accession Number
ADA182497

Entities

People

  • Edward M. Holliday
  • Glenn Weathers

Organizations

  • United States Army Aviation and Missile Command

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cancellation
  • Composite Materials
  • Cross Correlation
  • Detection
  • Elimination
  • Engineering
  • Frequency
  • Intervals
  • Military Research
  • Orthogonality
  • Security
  • Sequences
  • Sidelobes
  • Time Intervals
  • Waveforms

Readers

  • Phased Array Antenna Design.
  • Radar Systems Engineering.