Citation
Abstract
A new Viterbi decoder, capable of decoding convolutional codes with constraint lengths up to 15, is under development for the 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 dB to 2 dB improvement in bit SNR, compared to the present (7,1/2) code and existing Maximum-Likelihood Convolutional Decoder (MCD). The new decoder will be fully programmable for any code up to constraint length 15, and code rate 1/2 to 1/6. This article describes the decoder architecture and top-level design.
Details
- Volume
- 42-95
- Published
- November 15, 1988
- Pages
- 134–142
- File Size
- 357.3 KB