Unique Words for Identification and Synchronization in TDMA Satellite Communications Systems.

Abstract

In a time-division multiple-access (TDMA) system, many transmitting stations time share the same RF spectrum. Individual transmissions must be identifiable to distant receiving stations and must be synchronized so that no interference overlap occurs. A unique word sequence can serve both purposes. The basic concepts of a satellite communications TDMA system are briefly reviewed, with emphasis on functional receiver requirements. A correlation detection scheme is hypothesized, from which false and miss-detection probability expressions are derived. Criteria are then established for the selection of sequences suitable for use as unique words. Representative unique words of length 15 through 20 are included, along with an explanation of the difficulties encountered in devising an efficient computer search routine. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1974
Accession Number
AD0784762

Entities

People

  • Philip Myron Sanborn

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Artificial Satellites
  • Communication Systems
  • Computers
  • Detection
  • Identification
  • Multiple Access
  • Probability
  • Satellite Communications
  • Sequences
  • Space Systems
  • Spacecraft
  • Spectra
  • Time Division Multiple Access
  • Transmitting
  • Vehicles

Readers

  • Radio communications and signal processing.
  • Regression Analysis.

Technology Areas

  • Space