Time-Frequency Hop Coding Based Upon the Theory of Linear Congruences.

Abstract

Time-frequency hop codes are developed based upon the theory of linear congruences. These codes can be used for multiuser radar and asynchronous spread-spectrum communications systems. A uniform upper bound is placed on the crosscorrelation function between any two elements of the code set. The upper bound is minimized by choice of BT-product and is shown to diminish as 2/N, where N is the number of elements in the code set. The size and position of spurious peaks in the autocorrelation functions are discussed. The results are extended to narrowband ambiguity functions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 22, 1980
Accession Number
ADA093382

Entities

People

  • E. L. Titlebaum

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Autocorrelation
  • Bandwidth
  • Celestial Brightness
  • Classification
  • Communication Systems
  • Computer Programming
  • Computer Simulations
  • Doppler Effect
  • Equations
  • Frequency
  • Frequency Modulation
  • Frequency Shift
  • Navy
  • Pulse Compression
  • Security
  • Spread Spectrum
  • Universities

Readers

  • Computer Programming and Software Development.
  • Radio communications and signal processing.