Joint Maximum-Likelihood-Based Phase and Timing Synchronizer for Dual- h, Full-Response 4-ary CPM

摘要

Maximum likelihood techniques are useful in finding synchronizer structures for various cases. Synchronizers for frequency phase, and timing have been found for various bandpass signaling techniques such as PSK, DPSK, QAM, MSK, and CPM. These include data-aided decision directed, and clock-aided cases. This report describes a new nondata-aided, non-decision-directed ML-based phase and timing synchronizer for a dual-h, full-response, 4-ary CPM waveform. The derived structure will be incorporated into future simulations to compare performance among several possible phase and timing synchronizations.