计算信号循环谱的函数： 这个函数用来计算数字调制信号的循环谱图，结果存放在sxf中，surf和shading interp这两个函数配合使用就可以得到信号的循环谱图-Calculate the signal cyclic spectrum function: This function is used to calculate the cycle spectrum of digitally modulated signals, the result stored in the sxf

离散函数matlab基本用法卷积与循环卷积描述及连续信号幅度谱包络-Discrete convolution function matlab basic usage and circular convolution descr iption and continuous signal amplitude spectral envelope

现代信号处理中谱估计在matlab中的使用，有循环检测，周期性检测，预报误差法参数辨识-松弛的思想。- Modern signal processing used in the spectral estimation in matlab, There are cycle detection, periodic testing, Prediction Error Method for Parameter Identification- the idea of relaxation.

包含各种循环谱代码，时域自相关和频域自相关循环谱子程序，直接调用就行了！(matlab program about BPSK and FSK spectral correlation.)