gehanggeliesaomiao

说明：  该程序用来实现语音的变调不变速，可以将男声变为女声或者反过来。(The program' s tone is not used for voice transmission, can be male, or turn into a female.)

对电网不平衡情况下的三相PWM整流器进行了详细的建模分析，并在此基础上研究了两种不平衡控制策略。其一是抑制网侧负序电流的控制策略，主要控制三相PWM整流器交流电流对称正弦化控制。其二是抑制直流电压谐波分量的控制策略，主要控制三相PWM整流器从电网吸收平衡的瞬时功率，消除直流电压中的各次谐波分量。(Research on the Control strategy of Three-Phase PWM Rectifiers under Unbalaneed Grid Voltage)

说明：  matlab仿真程序，包括长周期光纤光栅的仿真，还有布拉格光栅(matlab simulation program, including the simulation of long period fiber gratings, and Bragg grating)

帮助新手快速学习matlab，很容易上手的，是一些基础知识。(Help novices quickly learn matlab, very easy to use, is some basic knowledge.)

本源代码首先实现普通的直方图均衡化，再实现灰度级之间的均匀分布，可以有效的解决直方图均衡化过程中的灰度断层现象。使得图像更加的柔和，直方图分布更均匀。(Source code first to achieve common histogram equalization, and then to achieve uniform distribution between gray levels can be an effective solution in the process of histogram equalization, gray fault phenomenon. Makes the image more of the soft histogram more evenly distributed.)

调用过程 CM = Confusion_matrix(train_predicts, train_targets) [combining_predicts, errorrate] = combining_NB(DP, test_targets, CM) DP，三维数组，(i,j,k)为第k个样本的DP矩阵 targets 为 0 1 2 (process called CM = Confusion_matrix (train_predicts, train_targets) [combining_predicts, errorrate] = combining_NB (DP, test_targets, CM) DP, three-dimensional array (i, j, k) for the k samples of DP matrix targets for 0 1 2 )

说明：  使用matlab，spa算法提取光谱的特征波长，结合了plsr(Using MATLAB and Spa algorithm to extract the characteristic wavelength of the spectrum, combined with PLSR)

说明：  matlab读取和显示gif格式图片（实例操作）(matlab gif format to read and display images)

基于matlab的QPSK数字基带通信系统仿真(Matlab-based QPSK digital communication system simulation)

一维信号小波变换滤波器matlab源代码，处理一维信号(One-dimensional wavelet transform matlab source code , one-dimensional signal processing)