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说明：  人体心电信号的滤波，用一个Butterworth低通滤波器，滤除50Hz工频噪声，并采用不同阶数的Butterworth低通滤波器，比较效果(Human ECG signal filtering, using a Butterworth low-pass filter, filter the 50Hz frequency noise, and different orders of Butterworth low-pass filter, compare results)

c++的adc（数模转换器）测试实例程序，很实用，适合初学者(the c++ adc test instance procedures, very practical, very classic)

genetic algorithm tool box

basic concept in matlab

communication technology using Li-Fi method

OFDM频偏估计优化算法代码，次代码文章是2007年硕士毕业优秀论文，具有很高的参考价值。(OFDM Offset Estimation Algorithm optimization code, sub-article code is 2007 graduate Master of excellent essays, have a very high reference value.)

2PSK调制器的设计,在通信原理教学中应用MATLAB语言，可借助MATLAB方便的绘图性，把信号的频谱用MATLAB图形,很好地展现给学生，这样学生可以通过形象的图形来掌握抽象的理论，从而更好地理解原理．(2PSK modulator design, principles of teaching in the communications applications MATLAB language, can take advantage of MATLAB graphics and convenient, the spectrum signal using MATLAB graphics, a good show to the students so that students can grasp the image of the graphics to the theory of abstract to better understand the principle.)

分别用三段直线和imadjust函数对图像进行对比度增强，并可以比较结果。(Three lines and imadjust function of image contrast enhancement, and can compare the results.)

针对EMD经验模态分解不能找到instfreq的问题(For empirical mode decomposition EMD can not find instfreq problems)

H桥仿真，移相全桥，采用matlab软件进行的移相全桥(H-bridge simulation, phase-shifted full-bridge, full-bridge phase-shift of matlab software)