Doppler Compensation for Airborne Non-Side-Looking Phased-Array Radar

Abstract

As a supplement to an earlier DSTO Technical Note, "Overview of STAP algorithms", this Technical Note examines processing of phased array data collected from non-side-looking geometries. Space-time adaptive processing (STAP) algorithms developed for the radar operating in the side-looking mode cannot in general be directly applied to radar operating in non-side-looking modes, including the forward-looking mode. A simple Doppler compensation scheme is described, so that the Doppler frequency of mainlobe clutter is shifted to zero and becomes range invariant, like the clutter data collected from the side-looking geometry. After Doppler compensation, all STAP algorithms developed for the side-looking geometry can be applied. Also briefly discussed are some techniques for suppression of range-ambiguous clutter, including so-called 3D STAP and frequency diversity technology.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2015
Accession Number
ADA623758

Entities

People

  • Yunhan Dong

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Sensors

DTIC Thesaurus Topics

  • Algorithms
  • Data Processing
  • Depression Angles
  • Detection
  • Detectors
  • Doppler Effect
  • Electrical Engineering
  • Frequency Diversity
  • Geometry
  • National Security
  • Phased Array Radar
  • Radar
  • Radio Frequency
  • Side Looking Radar
  • Three Dimensional
  • Two Dimensional
  • Warning Systems

Readers

  • Radar Systems Engineering.

Technology Areas

  • Space
  • Space - Space Objects