Citation

Abstract

A selective repeat Automatic Repeat Request (ARQ) system has been implemented under software control in the GCF Error Detection and Correction (EDC) assembly at JPL and the Comm Monitor and Formatter (CMF) assembly at the DSSs. The CMF and EDC significantly improved real-time data quality and significantly reduced the post-pass time required for replay of blocks originally received in error. Since the Remote Mission Operation Centers (RMOCs) do not provide compatible error correction equipment, error correction will not be used on the RMOC-JPL HSD circuits. The real-time error correction capability will correct error burst or outage of two (2) loop-times or less for each DSSJPL HSD circuit.

Details

Volume
42-48
Published
December 15, 1978
Pages
87–93
File Size
541.6 KB