sltankrule

The program model plane source as the model demonstration of 3D, easy for beginners to learn and exchange

高斯坐标，大地坐标，空间直角坐标之间的相互转换，参照控制测量下册公式编写。(Gauss coordinates, geodetic coordinates, space conversion between rectangular coordinates, the formula reference book prepared under the control measure.)

matlab 应用数学工具箱的使用，包括概率统计、偏微分方程等。(matlab toolbox of applied mathematics, including probability and statistics, such as partial differential equations.)

MATLAB及在电子信息课程中的应用.感觉很有用,本来也不花钱,有想用的来拿吧(MATLAB and electronic information in the application of the curriculum. Feeling very useful, would have no money, there are来拿want it)

send my code in Matlab for MCMC

根据高等转子动力学内容，编程计算转子-轴系固有扭振频率代码，每一步均配有相应的注释说明。(According to the higher rotor dynamic content, programming calculation of rotor shafting torsional vibration inherent frequency code, each step with the corresponding notes.)

some codes for calculate orbit definition

现代通信系统matlab第七章载波调制的数字传输源代码(Modern communications systems matlab Chapter VII of the carrier modulated digital transmission source code)

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)

qpsk的调制解调源码，注释详细。功能正常。很适合学习调制解调的人.文件包含： qpsk_mod_demod.m(qpsk mod and demod procedure qpsk_mod_demod.m)