Statistical Histogram-based Blind Frequency Offset Estimation for MPSK and MQAM Signal
Shuai Zheng, Jian Chen, Yonghong Kuo, Ning Wang · 2022
For non-cooperative communication, carrier synchronization and frequency offset estimation are the keys for signal processing of receiver. In this paper, a new blind frequency offset estimation algorithm based on statistical histogram is proposed for MPSK and MQAM signals. The aggregation degree of the symbol angle is used as the metric to measure the frequency offset. A two-level quick iteration algorithm is proposed to realize the prediction of frequency offset. Simulation results show that the frequency offset is effectively predicted in our new proposal.