RFSS. Volume 1. Distributed Clutter Model: Real-Time FFT Program.

Abstract

This report describes a real-time simulation procedure for generating replicas of the ground clutter signal as received on the three monopulse channels of an airborne radar. The procedure is based on first computing the power spectra of the clutter (on the three monopulse channels) according to the engagement geometry, then randomizing these power spectra, and finally executing an FFT in real time to create the quadrature video components of the clutter sequences. The procedure permits any spectra shape to be simulated, so that it is inherently very accurate. However, the computation is time-consuming so that its application in real time is limited. With one AP120B array processor interfaced to a Data craft/6 computer, only a signle range gate of clutter can be simulated in real time. Listings of a Fortran program are included. The program has been tailored to a specific missile system under test at the RFSS.

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Document Details

Document Type
Technical Report
Publication Date
Nov 27, 1978
Accession Number
ADA093052

Entities

People

  • R. L. Mitchell

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Antennas
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Databases
  • Doppler Radar
  • Frequency
  • Geometry
  • Grazing Angles
  • Ground Clutter
  • Host Computers
  • Peak Values
  • Power Gain
  • Power Spectra
  • Radar
  • Simulations
  • Weighting Functions

Fields of Study

  • Physics

Readers

  • Acoustical Oceanography.
  • Parallel and Distributed Computing.
  • Phased Array Antenna Design.