three-SPWM

gmdh for matlab sorcse code

利用matlab实现无约束优化，对不同的函数进行优化，并比较优化结果和运算速度(Matlab unconstrained optimization, optimize and compare different function optimization results and computational speed.)

说明：  伺服阀的详细数学模型，适合初学者研究，可以较方便更改(A detailed mathematical model of servo valve, suitable for beginners study, can be more convenient to change)

计算小波熵程序，先计算出小波分解后的小波系数，对其求熵得出结果。(Wavelet entropy calculation program, first calculate the wavelet coefficients of the wavelet decomposition, the results of its request entropy.)

MATLAB低通滤波，高斯滤波程序，共5个，对应分析的例子(MATLAB low-pass filter, Gaussian filter process)

将信号用小波函数SYM5分解到第5层，用minimaxi阈值选择对系数进行处理，消除噪声(SYM5 decomposition using the wavelet function signals to the fifth floor, use minimaxi threshold choice to deal with coefficient, eliminate noise)

说明：  基于平面波展开 传输矩阵计算2维矩形光子晶体模型 计算可得出相关图谱 handbook中除了参数说明还有参考文献等(Plane wave expansion based on the transfer matrix calculation of 2-D model calculation of rectangular photonic crystal patterns can be drawn from the relevant handbook of parameters except that there are references such as)

ripple current reduction for the active filter design in matlab

无线传感器网络四种分簇算法的关于能量消耗，能量消耗均衡度，节点死亡的仿真比较，leach，leach-c，deec，deec-c(Wireless sensor network clustering algorithm on the four energy consumption, energy consumption equilibrium degree, comparing the simulation node death, leach, leach-c, deec, deec-c)

通信系统中的信号调制与解调技术，对信号比特流进行8QAM信号调制与解调的matlab仿真。(Communication system signal modulation and demodulation techniques for signal simulation matlab 8QAM bitstream signal modulation and demodulation.)