THE IMPROVEMENT OF DIGITAL HF COMMUNICATION THROUGH CODING
Abstract
In previous papers the technique of error correction of digital data through the use of interleaved cyclic codes and a set of probability functions for the evaluation of error patterns have been presented. In this paper the previous results are extended to a wide range of BCH and symbol codes. A set of simple equations is presented for the description of an interleaved cyclic code and its associated delay, and a method is presented which allows for a significant increase in error rate improvement at a reduction in the delay time introduced into the channel. It is demonstrated that the performance of interleaved cyclic codes is sufficient to correct all types of measured HF error patterns; that, using delay as a basis of comparison, only the total bit interleaving is important in achieving error correction; and that it is possible to get almost 100 percent error correction for delays under 3 seconds for all channel conditions measured.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1968
- Accession Number
- AD0670184
Entities
People
- K. Brayer
Organizations
- MITRE Corporation