M-rife估频算法的实现，Matlab函数。-M-rife frequency estimation algorithm, Matlab function.

此程序为matlab程序，用于频率估计。程序包含了rife算法和M-rife算法，并对两种算法进行了比较分析。-This program is a matlab program, used for frequency estimation. The program contains the the rife algorithm and the M-the rife algorithm, and the two algorithms were compared and analyzed.