buck_boost

对图像以嵌入率为rate进行顺序LSB嵌入，然后进行卡方隐写分析(Rate on the image to be embedded in the order of LSB embedding rate, and then chi-square steganalysis)

PMSG base on slip mode,can be successfully run in simulink.

根据对真空蒸发镀膜的分析，在40×40的范围内分别蒸 发：1000、5000、10000、20000、30000个粒子。  利用2维数组记录每个点的粒子数。  初始粒的横纵坐标为0～40的均匀分布。  能量为（15，3）的正态分布。  在基体表面自由行走时损失1的能量。  若该点有粒子，即与其他粒子相遇时损失3的能量。  由低处向高处扩散，每扩散一层，损失4的能量，由高处 向低处扩散，损失3的能量。  当粒子的能量小于等于0时停留下来，该点的粒子数加1。  临界核的尺寸为10个粒子。  根据每个点粒子个数的不同，以不同的灰度显示这些点。 点越亮，则表示该点的膜越厚。  以图形方式显示粒子初始能量的正态分布情况(Based on the analysis of the vacuum evaporation coating, respectively, in the range of from 4040 evaporated: 1000,5000,10000,20000,30000 particles.  each point using 2-dimensional array to record the number of particles. The  initial grains transverse and longitudinal coordinates of a uniform distribution of 0 to 40. The  energy as a normal distribution (15,3).  1 energy losses in the substrate surface to walk.  point particles that 3 energy loss in the encounter with the other particles.  by the lower diffusion tops every diffusion layer, a loss of 4 energy diffusion from high to low, the energy loss of 3.  When the energy of the particles is less than or equal to 0:00 stay down, add 1 to the number of particles that point.  critical nucleus size of 10 particles.  these points, depending on the number of particles of each point is displayed in a different shade. Point, the brighter, the thicker the point of the fi)

说明：  数字滤波器的设计,用双线性变换设计N阶巴特沃斯低通数字滤波器。(The design of the digital filter, using bilinear transformation design N order butterworth low-pass digital filter.)

spectrum sensing is used for communication purpose. Matlab code is utilized for detecting signal by using energy detection noise.

此程序是计算wigner-ville分布、伪wigner-ville分布和平滑伪wigner-ville分布的程序，需要下载matlab时频分析工具箱(This procedure is the calculation wigner-ville distribution, pseudo-wigner-ville distribution and smooth pseudo-wigner-ville distribution procedures need to download the time-frequency analysis matlab toolbox)

This matlab code for removal of noise from images of rgb and grey type.

Space lib tips which is so useful in matlab programing particularlly in Control engineering.

基于贝叶斯的抠像算法，通过一个最大似然的标准去估计透明度(A Bayesian Approach to Digital Matting，uses a maximum-likelihood criterion to estimate the optimal opacity)

The report on "AUTHENTICATION SYSTEM OF PRINTED DOCUMENT USING WATERMARKING TECHNIGUE " This project is done to propose a method for offline watermarking in printed documents.