yanshichengxu

说明：  对数字信号进行BFSK调制，然后通过高斯白噪声信号后，检测其误码率！(The program s function is to modulate a signal with BFSK,then let the signal go pass a channel of guassian white nosie.At last,The program detects the BER of the signal.)

模拟退火算法——组合优化 模拟退火算法主要用于解决组和优化问题，它是模拟物理中晶体物质的退火过程而开发的一种优化算法。在对固体物质进行模拟退火处理时，通常先将它加温熔化，使其中的粒子可自由运动，然后随着温度的逐渐下降，粒子也逐渐形成了低能态的晶格。若在凝结点附近的温度下降速率足够慢，则固体物质一定会形成最低能态的基态。 对于组合优化问题来说，它也有这样的类似过程。组合优化问题解空间中的每一点都代表一个具有不同目标函数值的解。所谓优化，就是在解空间中寻找目标函数最小（大）解的过程。若把目标函数看成能量函数，某一控制参数视为温度 T，解空间当作形态空间，那么寻找基态的过程也就是求目标函数极小值的优化过程。 (Simulated annealing algorithm- combinatorial optimization Simulated annealing algorithm used to solve optimization problems and the group, it is the physical simulation of the crystal material in the annealing process and the development of an optimization algorithm. Solid substances in the simulated annealing process, it is usually heated it first melts, so that the particles are free to exercise, then gradually decreased as the temperature of the particles gradually formed a lower state of the lattice. If the temperature drops near the condensation rate slow enough, the solids will form the lowest energy state of the ground state. For combinatorial optimization problems, it also has such a similar process. Combinatorial optimization problem the solution space of each point represents a different objective function value of the solution. The so-called optimization, is in the solution space to find the minimum objective function (large) solution process. If the objective function a)

用自相关法对信号进行计算机仿真，得出自相关法的优缺点。(Autocorrelation method with a computer simulation of the signal, obtained from the relevant laws of the advantages and disadvantages.)

一个很有参考性的案例，是和自动驾驶相关的MP控制； 说明如何实时更新模型预测控制中的 预测模型的参数， 实现自适应控制。(A very useful case is MP control related to automatic driving. Explains how to update the parameters of predictive models in model predictive control in real time. Adaptive control is realized.)

libsvm的安装，配置，以及用libsvm完例成的一个小实(The installation, configuration, and use of libsvm as a small implementation)

说明：  Used to simulate fourth-folder dendrite growth

三维体数据成像vol3d(源于matlab central)(function [model] = vol3d(varargin) )

有用的SGA的Matlab源代码，求函数的最大值，根据SGA的C代码改变，很容易懂，对SGA 学习很有帮助(useful SGA Matlab source code, the maximum demand function, According to the SGA C code change, it is easy to understand and very helpful to SGA)

图像相似判断matlab用于两个图片的相似度进行比较和分析，一个采用巴氏系数计算法。另外一个rfg越接近1则越相似(matlab similar )

用平面波展开法计算二维带缺陷态结构的光子晶体的能带图。matlab程序源代码(With a two-dimensional plane wave expansion method to calculate the band structure of photonic crystal defect states in the energy band diagram. matlab source code)