A Study of Multiple Access Waveforms with Acoustic Surface Wave Matched Filters

Abstract

The report describes a study into synchronization problems of various spread spectrum waveforms for direct mode, multiple access systems. Particular attention is paid to user mutual interference and how this interference influences the choice of the waveform. Computer generated cross-correlation properties of the 18 basic 127 chip m-sequences are given in simulating a pure code division system. The basic pseudo-noise sequence is implemented by acoustic surface wave matched filters. The performance of these matched filters under various interference conditions (including multipath) is given.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1972
Accession Number
AD0740582

Entities

People

  • Henry J. Bush

Organizations

  • Rome Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Communications Techniques
  • Computers
  • Correlators
  • Cross Correlation
  • Filters
  • Frequency
  • Frequency Agility
  • Matched Filters
  • Modulation
  • Multiple Access
  • Sequences
  • Spectra
  • Spread Spectrum
  • Surface Waves
  • Waveforms
  • Waves

Fields of Study

  • Engineering

Readers

  • Radio communications and signal processing.
  • Wave Propagation and Nonlinear Chaotic Dynamics.