xinhaoqudian(quan)

输入两幅图像进行直方图匹配，matlab程序(Enter the two image histogram matching, matlab program)

文件中包含了LDPC码、卷积码、turbo码3种编码方式在相同码率下，性能的对比图，并且包含实验报告和各个文件功能的说明。(File contains LDPC code, a convolutional code, turbo code three kinds of encoding at the same rate, performance comparison chart, and contains test reports and feature descriptions for each file.)

implements the secant method for solving an equation f(x) = 0.

In numerical linear algebra, the Gauss–Seidel method, also known as the Liebmann method or the method of successive displacement, is an iterative method used to solve a linear system of equations. It is named after the German mathematicians Carl Friedrich Gauss and Philipp Ludwig von Seidel, and is similar to the Jacobi method. Though it can be applied to any matrix with non-zero elements on the diagonals, convergence is only guaranteed if the matrix is either diagonally dominant, or symmetric and positive definite.

实现滤波器的功能，从而使有噪声的图像得以修复。(Realization of the filter function, so there is noise in the image can be repaired.)

这是一个用matlab编写的牛顿法源代码，比较简单的无约束方程。牛顿法是求非线性方程（组）零点的一种重要的迭代法，又称牛顿－拉弗森法或切线法。(This is a matlab source code written in Newton s method, relatively simple equation of the non-binding. Newton s method is the pursuit of non-linear equation (group) zero is an important iterative method, also known as Newton- La Fusen law or tangent method. )

说明：  采用乔克利特方法解方程，采用高斯消去法解方程(Qiaokelite method to solve the equation by using Gaussian elimination solution equation)

surg voltage in matlab

对于一幅输入图像，将产生一幅输出图像，输出图像的每个像素点的灰度值由输入像素点决定，将感兴趣特征的对比度扩展使之占据可显示灰度级的更大部分。使一输入图像转换为在每一灰度级上都有相同的像素点数，均衡化会减少灰度级数。大多数自然图像由于其灰度值分布集中在较窄的范围之内，引起图像细节不够清楚。采用直方图修正后可使图像的灰度间距拉大或使灰度均匀分布，从而增大了反差，使图像细节清楚，达到增强的目的。(For an input image, will produce an output image, the output image gray value of each pixel from the input pixel decided to expand interest in the contrast of features to make it account for more gray levels can be displayed most. Make an input image is converted to grayscale in each pixel have the same points, equalization will reduce the gray series. Most natural images because of their gray value distribution concentrated in a narrow range, causing the image detail is not clear enough. Make the image histogram revised by the gray space widening or so gray uniform distribution, thereby increasing the contrast between the image details clear objective to achieve enhanced.)

UWB，超宽带信号分析必用的子函数，第4部分！(UWB, ultra-wideband signal analysis will be used for Functions, Part 4!)