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Testing and Performance Analysis of the Multichannel Error Correction Code DecoderThis report provides the test results and performance analysis of the multichannel error correction code decoder (MED) system for a regenerative satellite with asynchronous, frequency-division multiple access (FDMA) uplink channels. It discusses the system performance relative to various critical parameters: the coding length, data pattern, unique word value, unique word threshold, and adjacent-channel interference. Testing was performed under laboratory conditions and used a computer control interface with specifically developed control software to vary these parameters. Needed technologies - the high-speed Bose Chaudhuri-Hocquenghem (BCH) codec from Harris Corporation and the TRW multichannel demultiplexer/demodulator (MCDD) - were fully integrated into the mesh very small aperture terminal (VSAT) onboard processing architecture and were demonstrated.
Document ID
19970003434
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Soni, Nitin J. (NASA Lewis Research Center Cleveland,OH United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1996
Subject Category
Communications And Radar
Report/Patent Number
NAS 1.26:107251
E-10305
NASA-TM-107251
Report Number: NAS 1.26:107251
Report Number: E-10305
Report Number: NASA-TM-107251
Accession Number
97N12169
Funding Number(s)
PROJECT: RTOP 233-5A-5G
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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