9927441ex9_4

distributes points around a given point

说明：  遗传算法借鉴了达尔文的进化论和孟德尔的生物遗传学说，模拟大自然界生物进化 机制，是一种高效、并行、全局搜索的优化方法。它能够在搜索过程中自动获取和积累 有关搜索空间的知识，并自适应控制搜索过程以求得最优解。(Genetic algorithm draws on Darwin s theory of evolution and Mendel s biological genetics, simulation of the nature of biological evolution Mechanism, is an efficient, parallel, global search optimization method. It can be automatically acquired and accumulated during the search process Knowledge about the search space, and adaptive control of the search process in order to obtain the optimal solution.)

数据聚类和模式识别MATLAB工具箱，完整的程序集(Data clustering and pattern recognition MATLAB toolbox, complete assembly)

SPSS file, for the beginner,very good SPSS file, for the beginner,very good

神经网络的matlab代码，欢迎亲们使用(The bpp neural network)

单纯形法matlab程序 求解标准型线性规划:max c*x s.t. A*x=b x>=0 本函数中的A是单纯初始表，包括:最后一行是初始的检验数，最后一列是资源向量b N是初始的基变量的下标 输出变量sol是最优解, 其中松弛变量（或剩余变量）可能不为0 输出变量val是最优目标值，kk是迭代次数( example：max 2*x1+3*x2 s.t. x1+2*x2<=8 4*x1<=16 4*x2<=12 x1,x2>=0)

本文在介绍MIMO无线通信系统模型的基础上，通过对比分析几种常用空时编码方法，选定空时分组码对信号进行编码并建立瑞利衰落信道模型，通过对两发一收及两发两收系统的仿真，研究接收天线数对系统接收信号可靠性的影响。之后进一步扩展到不同发射矩阵条件下研究多发一收系统的频谱利用率及误符号率，分析不同天线数目，不同发射矩阵条件下空时正交分组码检测算法的性能。(This paper introduced the MIMO wireless communication system model, through the comparative analysis of several commonly used method of space-time coding, grouping code for the selected space-time signal is encoded and establish Rayleigh fading channel model, through two rounds one and two rounds of closing Simulation of two closed systems, research receiving antennas to receive signals affect the reliability of the system. After further extended to study the conditions under different emission matrix of multiple spectral efficiency and symbol error rate of a closed system, analyze the different number of antennas, the performance under different emission matrix orthogonal space-time block codes condition detection algorithm.)

matlab环境下书写的PSO的GPSO算法附有引用函数(matlab environment, written in PSO algorithm with reference to the function of GPSO)

在多个特征中选取敏感特征，可以降低特征集的维数，提高分类准确率(Select the sensitive feature in multiple characteristics, can reduce the dimension of feature set, improving the classification accuracy )

通信系统基础知识 Matlab应用软件的基本知识以及基本操作技能 数字调制与解调 用软件matlab完成一个典型的通信系统的仿真，其中信源，数字化方式，基带码，信道码，调制方式(Basic knowledge of the communication system The Matlab application software basic knowledge and basic skills Digital modulation and demodulation Use the software matlab completion of a typical communication system simulation, wherein the source, the digitized baseband code, channel code, modulation scheme)