LPC

有限差分法的Matlab程序（椭圆型方程）,用有限差分法求解矩形域上的Poisson方程(Finite difference method in Matlab (elliptic equations), the finite difference method for solving the Poisson equation on a rectangular domain)

本算法利用matlab及libsvm软件包中提供的函数实现了SVR回归模型的仿真测试，并应用于混凝土抗压强度预测中。(The algorithm uses the libsvm matlab and functions provided in the package to achieve a SVR regression model simulation testing, and applied to predict the compressive strength of concrete.)

说明：  2019meisaiCti,zheshinimeiyouguodequanzinbanben(2019meisaiCti_fanyiban)

程序代码说明 P0301：数字图像矩阵数据的显示及其傅立叶变换 P0302：二维离散余弦变换的图像压缩 P0303：采用灰度变换的方法增强图像的对比度 P0304：直方图均匀化 P0305：模拟图像受高斯白噪声和椒盐噪声的影响 P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波 P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波 P0308：图像的自适应魏纳滤波 P0309：运用5种不同的梯度增强法进行图像锐化 P0310：图像的高通滤波和掩模处理 P0311：利用巴特沃斯（Butterworth）低通滤波器对受噪声干扰的图像进行平滑处理 P0312：利用巴特沃斯（Butterworth）高通滤波器对图像进行锐化处理(Code Description P0301: digital image data display matrix and Fourier transform P0302: Two-dimensional discrete cosine transform image compression P0303: gray-scale transformation method using the contrast enhanced image P0304: Histogram of homogenization P0305: simulated images by Gaussian white noise and salt and pepper noise of P0306: two-dimensional median filter function medfilt2 on the image noise by filtering salt and pepper P0307: using MATLAB in the function filter2 noise on the image by mean filter P0308: Image Adaptive Weiner Filter P0309: the use of 5 different gradient enhanced image sharpening method P0310: the image of the high-pass filter and mask treatment P0311: Using Butterworth (Butterworth) low pass filter the image noise by smoothing P0312: Using Butterworth (Butterworth) high pass filter sharpening the image)

Google Earth toolbox for Matlab with source code and demos

QPSK信号通过Rayleigh信道，并计算出误码率(QPSK signals go through Rayleigh channel)

说明：  一维等离子体的时域有限差分方法的仿真详细步奏(plasma FDTD)

自己写的JS程序： 具体是使用JS+JQ+animate动画+勾股定理实现了画太极图，原理很简单，就是使用绝对定位作为 div坐标+动画+div生成，升级画法：可以使用三角函数(sin,cos,tan etc)，使用勾股定理每个像 素点的位置不太好把握！ 最后：感兴趣的同学可以将imgs中的图片改成透明的图片，替换JS中方块，这样效果好看些。(JS write their own programs: Specifically using JS+ JQ+ animate animation+ Pythagorean realized painting of Tai Chi, the principle is very simple, is to use absolute positioning as + animation+ div div coordinate generation, upgrade painting: You can use trigonometric functions (sin, cos, tan etc), each pixel using the Pythagorean theorem Prime location is not very good grasp of the point! Finally: Interested students can imgs pictures into a transparent image, replace JS in the box, so the effect look better.)

分析了该信号的时域、频域、倒谱，循环谱等,小波包分析提取振动信号中的特征频率，各种kalman滤波器的设计。( Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Wavelet packet analysis to extract vibration signal characteristic frequency, Various kalman filter design.)

说明：  image processing matlab