Selection of an Optimal Frame Synchronization Strategy

• Main Author: Straehley, E. H.
• Other Authors: Straehley Associates
• Language: en_US
• Published: International Foundation for Telemetering 1976
• Online Access: http://hdl.handle.net/10150/609416; http://arizona.openrepository.com/arizona/handle/10150/609416

International Telemetering Conference Proceedings / September 28-30, 1976 / Hyatt House Hotel, Los Angeles, California === The operation of preprogrammed and adaptive frame synchronization strategies is simulated, based upon previous mathematical derivations. The simulation, coded in APL, describes operation over a range of Signal to Noise ratios of -4db to +14 db. Both the "Go-to-Lock" and the "Return-to-Search" modes of operation are studied. A specific optimal strategy is determined for the conventional synchronizer for each 2db interval over the range. This synchronizer is compared with an adaptive synchronizer, using the SPRT technique, and optimized for a -2db SNR. The SPRT synchronizer reaches Lock significantly faster for SNR<8db, and reverts to Search faster for SNR<2db. It adapts less readily to improving SNR in the "Return-to- Search" operation, but will still produce optimum results in this mode with fewer controls than a conventional design.