Transform Domain Processing for Digital Communication Systems Using Surface Acoustic Wave Devices

Abstract

The use of surface acoustic wave (SAW) devices in communication systems has recently been receiving a reasonable amount of attention. This is because SAW devices can be used to perform accurate real-time revolutions of broadband waveforms, thus enabling them to function efficiently as matched filters, Fourier transformers, etc. In particular, they appear to have a tremendous potential in spread spectrum systems. In the past, these devices have been shown to be capable of narrowband interference removal by Fourier transforming the received signal, passing the resulting waveform through either a notch-filter or a hard limiter, and then inverse transforming the latter signal. In this paper, a variety of extensions of previous results will be demonstrated. One of the key limitations of processing signals in the Fourier transform domain with SAW devices is the fact that only finite segments in time of the input waveform can be transformed by the device. It will be shown that by separating the data into two parallel bit streams, this p - trn.

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Document Details

Document Type
Technical Report
Publication Date
May 15, 1978
Accession Number
ADA061890

Entities

People

  • D. R. Arsenault
  • L. B. Milstein
  • Protik Das

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acoustic Waves
  • Chirp Filters
  • Communication Systems
  • Delay Lines
  • Filters
  • Filtration
  • Frequency
  • Generators
  • Matched Filters
  • Measurement
  • Piezoceramics
  • Rayleigh Waves
  • Semiconductors
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Surface Waves
  • Wave Propagation

Fields of Study

  • Engineering

Readers

  • Acoustical Oceanography.
  • Image Processing and Computer Vision.
  • Microwave Engineering.