Hyperbolic-model

：给出了一种提取特征点的新方法和合理的特征不变量。该方法根据三角不等式原理利用第三边与另 外两边之和的比值大小来确定角点，以特征点和它相邻的两个特征点所形成的两条直线的夹角正切值以及三角形 第三边与另两边和的比值作为特征不变量。这种特征提取的方法简单，并且由于扩大了模板取值范围，使识别效果受特征点漏检的影响较小。实验表明，该方法不仅简便，而且效果良好。(: In this paper, a new feature point extraction method and the characteristics of rational invariants. The method is based on the principle of triangle inequality with the use of the third side and both sides of the ratio of the size to determine the Corner to feature point and its two adjacent feature points formed by the angle between two tangent linear and the third triangle on both sides and edges with another feature of the ratio as a variable. This feature extraction method is simple, and as a result of the expansion of the scope of the template values to identify the effect of feature points by the impact of smaller undetected. Experiments show that the method is not only simple, but effective.)

demodulator for 8-psk modulation

提供一种求解最优哈密尔顿的算法---三边交换调整法，要求在运行jiaohuan3（三交换法）之前，给定邻接矩阵C和节点个数N，结果路径存放于R中。(Hamilton provides an algorithm for solving optimal--- trilateral exchange adjustment method requires running jiaohuan3 (c exchange) before the given node number of the adjacency matrix C and N, the result stored in R in the path.)

direct spread spectrum

这是中国数学建模中编程交流上分治算法内容，里面提供了很多分治算法的例子(This is the exchange of mathematical modeling in the programming content on the divide and conquer algorithm, which provides many examples of divide and conquer algorithm)

shannnon fanno coding and huffmmaannn cooooddding

混沌映射(序列)matlab算法“小全”：Logistic、Henon、帐篷、kent(含混沌二值图像生成函数)的matlab程序(Chaotic map (sequence) matlab algorithm " Souvenir" : Logistic, Henon, Tent, kent (including chaotic binary image generating function) matlab program)

说明：  实现两电平she控制，并通过算法得到其调制角(The two-level she control is realized and the modulation angle is obtained by algorithm)

用于MIMO检测的sphere decoder程序( This function implements a soft output sphere decoder. Based on the paper: C. Studer, M. Wenk, A. Burg, and H. Blocskei: "Soft-Output Sphere Decoding: Performance and Implementation Aspects", Asilomar 2006 R ... is an upper triangular matrix obtained from the QR decomposition of the MIMO channel H s ... received symbol (column) vector, s=Q^H*y dist_ZF ... Distance for the zero forcing solution symbols_ZF ... ZF solution M ... number of bits encoded in every layer [1 x nTA] symbol_alphabet ... for the demapping [nTA x 2^max(M)], filled with zeros for smaller symbol alphabets bittable ... matrix containing the bits according to the symbol_alphabet [sum(M) x 2^max(M)])

收集了一系列关于matlab界面编程的问题和解决方法，以及教程和小节。(The collection of a series of matlab interface programming problems and solutions, as well as tutorials tutorial section.)