Noise1

说明：  Matlab中如何实现二维和三维隐函数绘图 内含实例(Matlab, how to achieve two-dimensional and three-dimensional graphics containing examples of the implicit function)

人工鱼群算法，在一片水域中,鱼往往能自行或尾随其他鱼找到营养物质多的地方,因而鱼生存数目最多的地方一般就是本水域中营养物质最多的地方，人工鱼群算法就是根据这一特点,通过构造人工鱼来模仿鱼群的觅食!聚群及追尾行为,从而实现寻优，以下是鱼的几种典型行为:(1)觅食行为:一般情况下鱼在水中随机地自由游动,当发现食物时,则会向食物逐渐增多的方向快速游去。(2)聚群行为:鱼在游动过程中为了保证自身的生存和躲避危害会自然地聚集成群，鱼聚群时所遵守的规则有三条:分隔规则:尽量避免与临近伙伴过于拥挤 对准规则:尽量与临近伙伴的平均方向一致 内聚规则:尽量朝临近伙伴的中心移动。(3)追尾行为:当鱼群中的一条或几条鱼发现食物时,其临近的伙伴会尾随其快速到达食物点。特点：1)具有较快的收敛速度,可以用于解决有实时性要求的问题 2)对于一些精度要求不高的场合,可以用它快速的得到一个可行解 3)不需要问题的严格机理模型,甚至不需要问题的精确描述,这使得它的应用范围得以延伸.停止条件1) 判断连续多次所得的均方差小于语允许的误差2）判断某个区域的人工鱼群的数目达到某个比率3）联系多次所获取的值均不能超过已寻找的极值。 (Artificial fish swarm algorithm, in the midst of the waters, the fish tend to own or trailing other fish to find places with more nutrients and thus the largest number of fish survival in general is a place where most of the nutrients in the waters, artificial fish swarm algorithm is based on thisa characteristics, by constructing artificial fish to mimic fish foraging clusters and rear-end behavior, in order to achieve optimization, several typical behavior of the fish: (1) foraging behavior: the general case of fish in the water at randomthe free-swimming, swimming quickly when food is found, then the food is gradually increasing in the direction. (2) cluster behavior: the fish swimming in the process of naturally clustered, and abide by the rules when the fish cluster there are three: separate rule: try to avoid overcrowding with neighboring partners in order to ensure their own survival and to avoid harm alignment rules: as far as possible consistent with the mean direction of the)

通信系统中常用的多进制数字相位调制的源代码 并结合ofdm系统 加入了相应的保护前缀（cp）和导频序列 应用于有关ofdm的信道估计等系统(Communication systems commonly used in multi-band digital phase modulation of the source code and combine OFDM system by adding a prefix corresponding protection (cp) and the pilot sequence used in the relevant channel estimation of OFDM systems)

这个程序实现了MPEG2的视频压缩，用于Internet上视频流的处理（IP流还没有实现），程序的注释相对比较少，所以可能比较难理解些。下载后请先看说明。(This program implements MPEG2 video compression, video streaming for the Internet, the processing (IP flow has not yet achieved), program notes relatively small, it may be more difficult to understand something. Please read download instructions.)

可模拟能量检测 在任职无线网络中的频谱感知中有重要应用(Can simulate the energy detection in wireless networks in office, there are important applications of the spectrum sensing)

matlab program for advanced sine wave curve

MATLAB程序设计遗传算法经典源程序Classical genetic algorithm MATLAB programming source code(MATLAB programming classical genetic algorithm source code Classical genetic algorithm MATLAB programming source code)

说明：  一种变步长LMS自适应滤波算法及分析,电子学报，高鹰，谢长利提出的一种算法。本文提供该文中提出算法的matalb源程序文件，仅供大家参考。(A Variable Step Size LMS Adaptive Filtering Algorithm and analysis, electronic Journal of High Eagle, Xiechang Li proposed an algorithm. This article provides the text of the proposed algorithm matalb source file, only for your reference.)

一个简单的lssvm程序，用与最小二乘的回归预测(A simple ls svm program, with the least-squares regression )

mimoofdm仿真，主要是不同信道估计的对比，可以运行(mimoofdm simulation, mainly comparing different channel estimation can run)