New SAW Time Inversion System,

Abstract

A new SAW time inversion system is described. It requires fewer chirp filter elements than those required with the common method of cascading two Fourier or Fresnel transformations. This new method is based on the fact that the Fourier transform of a linear F.M. signal whose envelope is modulated by a given time function has (approximately) the time inverted function as its amplitude. Theoretical discussion and some experimental results are included.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1976
Accession Number
ADA065614

Entities

People

  • H. Gilboa
  • H. Messer
  • Y. Bar-ness

Organizations

  • Brown University

Tags

DTIC Thesaurus Topics

  • Amplitude
  • Applied Mathematics
  • Bandpass Filters
  • Bandwidth
  • Chirp Filters
  • Delta Functions
  • Detectors
  • Engineering
  • Equations
  • Filters
  • Inversion
  • Matched Filters
  • Mathematics
  • Military Research
  • Surface Waves
  • Universities

Readers

  • Approximation Theory.
  • Optical Physics and Photonics.