Pre-Filtering for Clutter Rejection in Beamspace STAP

Abstract

Several space-time adaptive processing algorithms have been proposed to detect weak targets in the presence of strong interference, especially clutter and jamming. Except for Displaced Phase Center Array (DPCA) processing, radar signal processing algorithms ignore the fact that the location of the clutter ridge in angle-Doppler space is known, given the platform speed and direction. This paper introduces our attempt to exploit this a priori knowledge in conjunction with the joint domain localized processing algorithm. Using a two dimensional filter, clutter is rejected in a first, non-adaptive stage, followed by adaptive processing in the angle-Doppler domain.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2005
Accession Number
ADA507792

Entities

People

  • Mehdi Khanpour-ardestani
  • Michael C. Wicks
  • Raviraj S Adve

Organizations

  • University of Toronto

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Sensors

DTIC Thesaurus Topics

  • Abstracts
  • Acquisition
  • Air Force Research Laboratories
  • Airborne
  • Algorithms
  • Antenna Arrays
  • Arrays
  • Bandstop Filters
  • Clutter
  • Computations
  • False Alarms
  • Filters
  • Filtration
  • Frequency
  • Frequency Response
  • Radar
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Adaptive Control and Estimation with Uncertainty in Dynamic Systems.
  • Radar Systems Engineering.

Technology Areas

  • Space
  • Space - Space Objects