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The Burrows wheeler transform of matrix x, it will calculate the Burrows wheeler transform of the matrix a and will output the encoded signal with primary index value this program will calculate the burrows wheeler transform of input image and produce the bwt output with indices vector

非线性反演中的共轭梯度反演方法 MATLAB程序(Conjugate gradient inversion in the nonlinear inversion method for MATLAB program)

说明：  matlab统计分析工具箱里面没有频数统计函数，有些情况下频数统计可以很直观地显现统计规律。(statistical analysis toolbox matlab There are no statistics on the frequency function, in some cases frequency statistics can be intuitively apparent statistical regularity.)

matlab实现fft,以及ifft算法,包含蝶型运算等文件(Matlab achieve fft and ifft algorithm, includes a butterfly computation, and other documents)

利用标准公式编写的自适应中值滤波matlab程序(Adaptive median filter code written using the standard formula)

vigenere密码在起初的破译中是靠穷举法，找出与阅读习惯最适合的明文，但是也可以先缩小穷举范围，再查找(vigenere initial crack passwords by brute-force method is to identify the most suitable and clear reading habits, but can also be reduced exhaustive range, and then find)

This code calculate the PSNR between the original and the distored image, and give the value of this PSNR.

matlab 带通，低通，巴特沃斯滤波器的设计(bandpass, low pass filter with butterworth type)

This paper deals with the damping technic of Low frequency oscillation in power system with SSSC compensator and various controllers

说明：  卫星星下点matlab程序:卫星星下点的运行轨迹代码(Matlab program for satellite subsatellite point)