Performance of a Diffuse Convolutional Code on HF Error Statistics.

Abstract

Analysis of the performance of a simulated decoder for the Kohlenberg and Forney one-half-rate, threshold-decodable, diffuse convolutional code, on error data obtained on a simulated HF radio channel, indicates that background errors may be significantly suppressed in the presence of burst errors by using a diffusion factor that introduces a total coding delay of about 100 ms. The precise value of the diffusion factor must be tailored to the modem frame size. Furthermore, when the modulation technique introduces correlation between errors on bit pairs, it is preferable to confine the errors to corresponding information and parity bits. Random transmission errors on the information bits are shown to affect the decoder more than errors on the parity bits. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jul 19, 1977
Accession Number
ADA042918

Entities

People

  • Wayne M. Jewett

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Classification
  • Coders
  • Coding
  • Communication Channels
  • Communication Systems
  • Computer Programming
  • Computers
  • Data Transmission
  • Databases
  • Decoding
  • Diffusion
  • Frequency
  • Military Research
  • Modulation
  • Security
  • Simulators
  • Statistics

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  • Approximation Theory.
  • Computer Engineering
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