基于CAFMS算法的正弦调频信号参数估计及性能分析

摘要

This paper proposes a new algorithm that can be used for estimating the parameters of a sinusoidal frequency modulated (FM) signal. Asymptotic statistical results are derived for the modulation index and amplitude estimates. Simulation results show that the theoretical results are asymptotically optimal at the SNR above - 3dB, which indicates the efficiency and superiority of the proposed algorithm as well as the exactness of the accuracy analysis.%文章提出了一种估计单分量正弦调频信号参数的新算法,详细分析并推导得到了调制指数与幅度两个参数的理论估计精度.仿真结果表明,在较高信噪比条件时(SNR＞ - 3dB)论文所提算法的估计理论精度与仿真精度基本上是一致的.这说明了文章理论分析的正确性,也说明了论文所提算法的有效性和优越性.