gray2ind

利用fft2对图像傅里叶变换，在用lpfilter生成高斯低通滤波器，进行过滤再进行反变换最后显示(Use fft2 the image Fourier transform, in with lpfilter generate Gaussian low-pass filter for filtering the inverse transform last displayed)

说明：  传统MUSIC算法仿真，有很高的应用价值，也存在很多的误差，有待深入研究(Conventional MUSIC algorithm simulation, the application has a very high value, there are many errors to be in-depth study)

matlab中PID控制系统仿真模型，算法简单、稳定性好、可靠性高(PID control system simulation model in matlab, simple algorithm, good stability, high reliability)

现代信号处理 一个序列为 ，使用FFT分析其频谱： 1） 使用不同宽度的矩形窗截短该序列为M点长度，取M分别为： a) M=20 b) M=40 c)M=160 ；观察不同长度的窗对谱分析结果的影响； 2）使用汉宁窗、哈明窗重做1） 3）对三种窗的结果进行理论分析及比较。并绘出相应的幅频特性曲线 (Modern signal processing a sequence, using FFT analysis of the spectrum: 1) the width of the rectangular windows with different truncated point of the sequence length of M, take M, respectively: a) M = 20 b) M = 40 c) M = 160 observation windows of different lengths affect the results of spectral analysis 2) Hanning window, Hamming window redo 1) 3) the results of three windows and compare the theoretical analysis. And draw the corresponding amplitude-frequency characteristic curve)

This is an image segmentation Program

利用DCT进行图像压缩（首先将图像分割成8×8的图像，对每个子图像进行DCT，这样每个子图像有64个系数，舍去50％小的变换系数，进行2：1的压缩。）(Using DCT for image compression (first image into 8 × 8 image, for each sub-image DCT, so that each sub-image by a factor of 64, rounding 50 of the small transform coefficients, the 2:1 compression.))

一个简单的在matlab中实现曲线动态显示的例程。显示的是正弦曲线，逐步向坐标轴右移。给想要matlab动态显示提供点提示。(EnglishSpanishArabicAlpha A simple curve dynamic display routines in Matlab. Shows a sine curve, and gradually shifted to the right to the axis. To want to matlab dynamic display provides a hint.)

本算法是基于MATLAB平台开发的一个求解夹角（或者说是斜率），可以求解两条近似垂直的直线之间的夹角。(This algorithm is based on the platform of MATLAB to solve a angle (or a slope) can be solved approximately perpendicular angle between two straight lines between.)

LEARN MATLAB MARM MKWEW OWETWOW JWETWTJWO OTW

matlab/simulink建的混合动力汽车电机控制数学模型，可以控制电机的启停运转，发电等。(Matlab/Simulink built hybrid electric vehicle motor control mathematical model, can control the motor start and stop operation of power generation.)