c4_qamdemo

power_thermal.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_thermal.rar, Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

该程序简单的仿真了OFDM系统，包括信号的产生，映射，调制，加噪，解调(The program is simple simulation of the OFDM system, including signal generation, mapping, modulation, noise, demodulation)

基于MATLAB的单自由度机械振动系统的仿真，可以根据仿真描述运动规律(Simulation of single degree of freedom mechanical vibration system based on MATLAB, the simulation can be described according to the movement of)

说明：  能够实现对实验数据的降维，为故障分类做准备(It can reduce the dimension of experimental data and prepare for fault classification)

稀疏分数阶傅里叶变换例子，线性调频信号的例子，分数阶傅里叶变换检测(Sparse fractional Fourier transform examples, linear frequency modulation signal example, fractional Fourier transform detection)

图像的otsu分界算法的实现，不是调用函数的，是底层实现(otsu partition)

说明：  通信系统中的数字信号处理仿真程序， 内容很多，从source forge上下来的， 我用来研究信道仿真的(Communication System digital signal processing simulation program, many things, from the source to come down to the forge, I used to study channel simulation)

遗传算法优化神经网络程序[matlab]，十分有用(the generic algorithm of the network ,it is very helpful)

ASK,PSK调试，不是书上常见的调制方法。实用原信号序列延拓后得到。(ASK,PSK modulation, but not regular method seen in kinds of testbooks.)

Levenberg_Marquardt最优化算法matlab源程序(Levenberg_Marquardt optimization algorithm matlab source code)