Command link transmission unit a coding layer

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Unformatted text preview: AND LINK TRANSMISSION UNIT: A Coding layer protocol data entity which is used to synchronize and delimit the beginning of a continuum of bits consisting of a start sequence followed by an integral number of codeblocks. COMMAND SESSION: A continuous period of time during which the signal path is established for the communications channel. COMMAND THRESHOLD: The telecommand channel operating point at which a deletion rate of 1 frame per 1000 frames is obtained. DECODER (Hard Decision): A Coding layer algorithmic process which utilizes the check bits contained in a codeblock for detecting or correcting errors in the information bits. The check bits are then removed before the information bits are outputted. DECODER (Soft Decision): A Coding layer algorithmic process which uses quantization of the detector output into n levels for each received bit to decide upon the most likely codeblock and to estimate the reliability of that decision. The check bits are then removed before the best-estimate information bits and any reliability information are outputted. ENCO...
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This document was uploaded on 03/06/2014.

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