matlab绘图的程序，包括各种图形绘制方法和说明，对初学者帮助很大。...

xwch_test.m是主测试文件；biaoji.mat存放滤波器系数；xiangweicha.m用FFT计算相位差。 仿真框架为： 1.标记信号和双音信号续接作为发送信号； 2.对双音中一个频率分量的相位做偏移，再经过一个低通滤波器（引入线性相位，模拟收发不能同步测量现象）后，作为收到的信号； 3.用一个检测信号对收发信号进行相关运算； 4.画出收发信号以及相关处理后的信号。找出相关信号的那个尖点，从而推算出收发双音信号0相位点； 5. 输入0相位点位置，计算相对相位差。(xwch_test.m is the main test file biaoji.mat store filter coefficients xiangweicha.m calculated using FFT phase difference. Simulation framework: 1. Mark signals and then as a two-tone signal continued to send signals 2. On a two-tone frequency components of the phase shift to do, and then through a low pass filter (the introduction of linear phase, simulation can not simultaneously send and receive measuring the phenomenon), the as received signal 3. using a detection signal of the transceiver signal correlation operation 4. draw send and receive signals and related processed signal. Correlated signal of the cusp, which calculate the two-tone signal transceiver 0 phase point 5. Enter 0 phase point position, calculate the relative phase difference.)

这是一个矢量控制成功mdl模型，可改编为任何电机（永磁同步电机 异步电机等），低版本matlab上编写，大家均可成功运行 (Vector Control；PMSM Induction motor；mdl)

RII:Transform lowpass filters to highpass

两种噪声下，卡尔曼滤波的100次Monte Carlo仿真验证，画出了每时刻卡尔曼预测均方根误差和估计均方根误差的Monte Carlo变化曲线(with uniform and Gaussian noise respectively,through 100 Monte Carlo simulations,output thecurves of sampled state prediction variances and estimate variances of kalman filter in each element vs.time step.)

说明：  利用传播算子，进行阵列信号角度估计，运算快，不需要峰值搜索。(Use propagator conduct array signal angle estimation, fast operation, no peak search.)

基于小波变换的多尺度图像边缘检测matlab源代码(Based on wavelet transform multi-scale image edge detection matlab source code)

说明：  NPC三电平仿真, matlab仿真，2017版本(NPC 3level invrter simulation)

lsb算法将水印图像按最不重要位(LSB)方法嵌入到载体图像中，在把水印从载体图像中提取出来(This is a LSB algorithm that embedding watermark into the least important part of the primary image, and the watermark can be extracted from the primary image.)

对不理想环境下信号DOAMUSIC算法的性能仿真分析。(Not an ideal environment for the signal DOA MUSIC algorithm of the performance simulation.)

相关性小波去噪的程序实现，相关性去噪的程序实现(Wavelet denoising procedures related implementation procedures related to implementation of denoising)