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A long constraint length VLSI Viterbi decoder for the DSN (1988)

Collins, O. ; Zimmerman, G. ; Statman, J. I. ; [et al.]

In: CASI

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Publication Date: 2013-08-31

Description: A Viterbi decoder, capable of decoding convolutional codes with constraint lengths up to 15, is under development for the Deep Space Network (DSN). The objective is to complete a prototype of this decoder by late 1990, and demonstrate its performance using the (15, 1/4) encoder in Galileo. The decoder is expected to provide 1 to 2 dB improvement in bit SNR, compared to the present (7, 1/2) code and existing Maximum Likelihood Convolutional Decoder (MCD). The decoder will be fully programmable for any code up to constraint length 15, and code rate 1/2 to 1/6. The decoder architecture and top-level design are described.

Keywords: COMPUTER PROGRAMMING AND SOFTWARE

Type: The Telecommunications and Data Acquisition Report; p 134-142

Format: application/pdf

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