STUDY ON FAULT-TOLERANT DECODING OF TELEMETRY DATA SOFTWARE
Yang Hong · Aerospace Shanghai · 2000
When noisy frame synchronization patterns aren't identified, telemetry data is discarded by hardware synchronizer. In order to solve the problem, a software frame synchronization algorithm is presented and the feasibility of real time processing is verified. PCM stream which has been bit blocked is sent into computer, buffered by a dual port static RAM, then it's frame blocked roughly. Fuzzy algorithm and optimal selection is used to frame block accurately after all telemetry data received. As a result, the software frame synchronization algorithm is designed to be robust. The software is realized in VC6.0.