预先设定载频、采样率、码速率、信息代码个数和信噪比等参数，进行FSK信号的调制解调。-Pre-set carrier frequency, sampling rate, bit rate, information, code number and signal to noise ratio and other parameters for FSK signal modulation and demodulation.

已知一个信道的信噪比，求出相应的误码率，matlab实现，很好用，很多场合需要计算这个。反过来也是可以的。-Known signal-to-noise ratio of a channel, the error rate is obtained, matlab realize, well used, need to calculate the number of occasions. The reverse is also possible.

以下是均方误差、峰值信噪比以及熵的程序代码在MATLAB 中的实现-The following is the realization of the mean square error, peak signal to noise ratio and entropy code in MATLAB

GMSK文件里面是一些关于GMSK和直接序列扩频综合实现的论文，包含MATLAB和Verilog实现方法。 GMSK_matlab文件里是GMSK调制和1bit差分解调的MATLAB实现程序。里面有信噪比为-10~12dB时，运行好的误码率数据mat文件，可直接出图。-GMSK file includes the paper about GMSK modulation and demodulation. GMSK_matlab file includes the matlab code