Device for initializing a viterbi decoder in a receiver for sign

Details Device for initializing a viterbi decoder in a receiver for sign Device for initializing a viterbi decoder in a receiver for sign

1996-02-16

1999-02-23

Chin, Stephen

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

375356, 375354, 371 44, 371 45, 371 46, 371 21, 371 30, 371 371, 371 381, H03D 100

Patent

active

058752145

ABSTRACT:
A device for initializing a Viterbi decoder in a receiver for signals transmitted in the form of bursts, each burst comprising a synchronization word and message data that has undergone convolutional coding in a transmitter, the position of the message data relative to the synchronization word being known, includes a detector for detecting the synchronization word, a multiplexer for applying the received signals to the Viterbi decoder in the presence of the message data and for applying to the Viterbi decoder, immediately before and immediately after the message data, a code sequence generated locally, free of errors and having a length at least equal to the truncation length of the Viterbi decoder.

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R. L. Moat, "ACTS Baseband Processing", Globecom '86, IEEE Global Telecommunications Conference, Communications Broadening Technology Horizons, Conference Record (Cat. No. 86CH2298-9) Houston, TX, Dec. 1-4, 1986, New York, NY, IEEE pp. 578-583.
Clarke, K.C. et al, "Multi-channel Viterbi Decoder LSI Development", Milcom 86, 1986, 1986 IEEE Military Communications Conference. Communications-Computers: Teamed for the 90'2. Conference Record (Cat. No. 86CH2323-4), Monterey, CA, USA 5-9 Oct. 1986, New York, NY US, IEEE, pp. 12.6/1-5.
Otanis S. et al, "Development of a Variable Rate FEC LSI for Satellite Communications", NEC Research and Development, Jan. 1988, Japan, No. 88, Jan. '88, ISSN 0547-051X, pp. 12-19.

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