SOME SKYWAVE RADAR CONSTRAINTS

Abstract

Sky wave radar performance and method of operation are limited by other users of the hf band and by variability of the propagation medium. Examples of measured noise and interference background show features of this constraint; indications are that any pulse system must work against an interference background greater than that due atmospheric or galactic noise and that the wider the bandwidth the higher the interference level. Signal processing time and target speed discrimination possibilities are studied by frequency analysis of earth backscatter, aircraft echoes, and one way transmissions; effective processing times can be in excess of 10 seconds and tests suggest that part of the time targets with relative speeds as low as 10 knots may be detectable using large dynamic range MTI methods.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1967
Accession Number
AD0385931

Entities

People

  • E. W. Ward
  • J. L. Ahearn
  • James M. Headrick
  • W. C. Headrick

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aircrafts
  • Bandwidth
  • Crystal Filters
  • Data Acquisition
  • Detection
  • Detectors
  • Doppler Radar
  • Dynamic Range
  • Filters
  • Frequency
  • Frequency Bands
  • Government Procurement
  • Military Research
  • National Security
  • Security
  • Signal Processing
  • United States

Fields of Study

  • Physics

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Mathematics or Statistics
  • Radio communications and signal processing.