An Open-Loop Timing Recovery Algorithm for M-Array CPM Signals

An open-loop timing recovery algorithm based on basis-function decomposition approach is presented in this paper. The algorithm reduces the bias between the received signal and reference signal to half of the symbol period by the correlative computation, then makes exact timing-bias estimate by the angle information extracted from the correlative computation. The algorithm need not extract carrier phase and the complexity is low. Simulation results show it has good estimation precision.