Use of the Cepstrum for Processing Multipath Signals

Abstract

The report summarizes a study of the use of homomorphic filtering and cepstrum analysis for processing of communications signals which have been corrupted by multipath effects. The primary objective consisted of the development of computer programs by means of which simulated multipath signals, or actual received signals after conversion to digital form - can be processed so as to reduce or eliminate the distorting effect of multipath. This objective has been met for simple discrete multipath. Extensions to more complicated multipath structures are possible. Test results have been obtained using synthesized signal sequences that simulate actual communication signals of a particular type, namely, 16-channel PSK signals as they would be generated by an HF data modem.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1972
Accession Number
AD0740586

Entities

People

  • Harry Schwarzlander

Organizations

  • Syracuse University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Amplitude Modulation
  • Cancellation
  • Communication Systems
  • Computer Programs
  • Computers
  • Delay Lines
  • Demodulation
  • Detection
  • False Alarms
  • Filtration
  • Frequency
  • Modulation
  • Multipath Interference
  • Power Spectra
  • Probability
  • Statistics

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Speech Processing/Speech Recognition.