ECHO

gmc图象传输，可看到清晰的金鱼图片，有清楚的程序注释(gmc image transmission, we can see a clear picture of goldfish, a clear procedure Notes)

以高斯函数为载波的PPM调制解调，及于理想误码率曲线相比较的误码率曲线(Gaussian function of PPM modulation and demodulation of the carrier, and the desired BER curves compared to BER curves)

通过傅里叶变换的方法，对两个单频信号的相位差进行计算，信号相关性计算(Fourier transform method, the phase difference between two single-frequency signal is calculated)

一个简化的有源滤波器串联配置，提高并联型无源滤波器的滤波。(A simplified active filter in series configuration to improve the shunt passive filter filtering.)

说明：  局部碰磨事故检测代码，通过功率谱检测，例子检测了四种类型的碰磨事故(Partial rubbing incident detection code, through the power spectrum detection, examples of detection of the four types of rub-impact accident)

best Frequency Modulation

LINEAR REGRESSION SOURS CODE

基于Matlab的音频文件数字滤波处理。本文基于Matlab分析了wav声音文件频谱与声音的关系，并给出了不同采样频率对输出声音信号的影响。(Matlab-based digital filter processing of audio files. This analysis based on Matlab wav sound files and sound relationship between the spectrum and gives different output sampling frequency of the sound signals.)

Matlab Code For Delta Modulation

Code matlab cp-ofdm in siso case with wran channel parameters