Citation
Abstract
New methods of parallel and serial synchronization for time-multiplexed phasecoherent telemetry signals are presented. In the parallel case, i.e., when the sync code is transmitted on a separate channel, M synchronization codes are generated by concatenating a common pseudonoise (PN)-like sequence of short length with words from a self-synchronizing code. The frame synchronizer can lock on any of the M codes, which is particularly useful when frames of different lengths have to be transmitted. In the serial case, that is, when each frame starts with an identical sync code, false sync due to replicas of the code randomly generated by the data is completely eliminated by transferring the sync code to the quadrature channel, while the data are transmitted on the in-phase channel.
Details
- Volume
- X
- Published
- August 15, 1972
- Pages
- 96–103
- File Size
- 566.0 KB