fwdblockstego

music算法：矩阵特征空间分解，在空间谱域求取谱函数最大值，其谱峰对应的角度即是来波方向角的估计值。(music algorithm: Matrix feature space decomposition, in the spatial spectral domain to strike a maximum spectral function, its spectral peaks corresponding to the angle that is DOA angle estimate.)

自己写的广义LDPC的程序，包括编译码，其中最重要的是一码算法，用的是chase算法，有很好的性能，希望可以跟大家交流改进(Generalized LDPC write procedures, including the encoding and decoding, most important of which is a code algorithm, using a chase algorithm has good performance, hoping to improve communication with everyone)

m-pskmodulation and de modulation

Alternative good LDPC codes for DVB-S2(In our following paper, we find that the shortten codes of DVB-S2 have some problems,this program can provide a good DVB-S2 LDPC code without cascaded BCH codes. [1] Yang Xiao, Kiseon Kim, "Alternative good LDPC codes for DVB-S2", 9th International Conference on Signal Processing, 2008 (ICSP 2008), Beijing, 26-29 Oct. 2008, page(s): 1959-1962, ISBN: 978-1-4244-2178-7, INSPEC Accession Number: 10411270, Digital Object Identifier: 10.1109/ICOSP.2008.4697527, Current Version Published: 2008-12-08 The paper can be downloaded from Web site of IEEE Explore.)

Make a simple circle with matlab

小波分析理论及MATLAB7实现的例程,第16章小波工具箱的应用基础(Wavelet analysis theory and realize MATLAB7 the routines, Chapter 16 of the application based on wavelet toolbox)

说明：  本例是一个简单的运动目标跟踪程序，对一个小球进行了实时的跟踪(This example is a simple object tracking program, for a small real-time tracking of ball)

通过确定特征值所张成的特征空间上的主成分分析方法，确定对确定输出变量间的输入变量的相互影响关系。(By determining the characteristic features of the value of the Zhang space on principal component analysis to determine the output variables in determining the input variables in our cases.)

求解Lambert问题。 输入：轨道上两个点的位矢R1、R2，以及从R1到R2所用的时间t(缺点是脉冲太大)。 输出：质点在R1端点的速度V1，质点在R2端点的速度V2. 此函数用于：在给定轨道上两个点的位矢R1、R2，以及从R1到R2所用的时间t。求解V1、V2。再调用前面的函数就可以确定轨道根数，及任意时刻质点的状态。(To solve the Lambert problem. Input: track two-point position vector R1, R2, and R1 to R2 used in the time t (The disadvantage is that the pulse is too large). Output: particle R1 endpoint speed V1, the particle in the R2 endpoint speed V2. This function is used: two points in a given orbit position vector R1, R2, and from R1 to R2 with the time t. Solve the V1 and V2. And then call the previous function can determine the orbital elements, and any moment of the particle' s state.)

这是信息论里的知识，有循环编码、香农编码、费诺编码的程序(This is the knowledge in the information theory, a cycle encoding, shannon coding, coding procedure fee)