New s.a.w. Time-inversion system

H. Messer, Y. Bar-Ness, H. Gilboa

Research output: Contribution to journalArticlepeer-review


A new s.a.w. 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.

Original languageEnglish
Pages (from-to)214-215
Number of pages2
JournalElectronics Letters
Issue number7
StatePublished - 29 Mar 1979
Externally publishedYes


  • Signal processing
  • Surface-acoustic-wave devices


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