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Space vehicle viterbi decoder. [data converters, algorithms
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Copyright Year | 1975 |
| Description | The design and fabrication of an extremely low-power, constraint-length 7, rate 1/3 Viterbi decoder brassboard capable of operating at information rates of up to 100 kb/s is presented. The brassboard is partitioned to facilitate a later transition to an LSI version requiring even less power. The effect of soft-decision thresholds, path memory lengths, and output selection algorithms on the bit error rate is evaluated. A branch synchronization algorithm is compared with a more conventional approach. The implementation of the decoder and its test set (including all-digital noise source) are described along with the results of various system tests and evaluations. Results and recommendations are presented. |
| File Size | 6240271 |
| Page Count | 70 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19750015600 |
| Archival Resource Key | ark:/13960/t5x688j3k |
| Language | English |
| Publisher Date | 1975-04-16 |
| Access Restriction | Open |
| Subject Keyword | Spacecraft Instrumentation Viterbi Decoders Algorithms Synchronism Data Transmission Data Converters Digital Data Decoders Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
