Performance Improvement Using Interpulse Pattern Diversity with Space-Time Adaptive Processing

Abstract

This work investigates the impact of interpulse (pulse-to-pulse) transmit pattern diversity on Space-Time Adaptive Processing (STAP) performance. It is shown that varying interpulse transmit characteristics within a Coherent Processing Interval (CPI) can re-shape the clutter power spectrum, resulting in a interference whitening effect. For conducting comparative analysis with non-adaptive transmit techniques, a commonly used clutter model is extended to effectively incorporate interpulse pattern diversity effects. The work shows promise for achieving better Minimum Discernable Velocity (MDV) using phased array transmit weights derived from optimum STAP weights (known covariance). Pattern diversity effectively re-distributes clutter energy away from the clutter ridge. For the unambiguous clutter case, the proposed adaptive transmit technique shows promise for improving MDV at the clutter ridge peak.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2005
Accession Number
ADA500233

Entities

People

  • Michael A. Temple
  • Muralidhar Rangaswamy
  • Phillip M. Corbell
  • Todd B. Hale
  • William P. Baker

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Antennas
  • Arrays
  • Covariance
  • Electronically Scanned Array
  • Filters
  • Frequency
  • Governments
  • Information Operations
  • Linear Arrays
  • Phased Arrays
  • Power Spectra
  • Simulations
  • Spectra
  • Standards
  • Steering

Fields of Study

  • Engineering

Readers

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

Technology Areas

  • Space