关键词: 连续相位调制, 最大似然准则, 定时同步, 连续模式传输

Abstract:

Since the feedforward timing synchronization for Multih CPM is not suitable for communication systems of continuous transmission mode, the paper proposes a nondataaided feedback timing synchronization algorithm. This algorithm adopts the maximum likelihood principle to derive the timing error detection signal, which is then used to form a closedloop control structure to track the timing offset. And the modified Cramer Rao Bound is presented for comparison. Simulation results show that the proposed algorithm can track timing offset and has good performance, suitable for communication systems of continuous mode transmission.

Key words: continuous phase modulation, maximum likelihood principle, timing synchronization, continuous mode transmission