ctbook

基于认知无线电的扩跳频通信信号的调制识别(Hopping spread based on cognitive radio communication signal modulation recognition)

somthing russian function, by artemy

YALMIP工具箱使用说明以及YALMIP中文编程方法(The instructions and the programming method of YALMIP)

说明：  H桥DCDC+H6DCACmatlab仿真(DCDC+H6DCAC Matlab Simulation)

说明：  matlab模拟八边形光子晶体光纤，容易接受，上手快(pcf。Computing easy, fast Convenience of calculation speed. Super easy to do, accept the fast )

根据直扩原理，首先有随机数发生器产生一系列二进制信息数据（+1，-1），每个信息比特重复Lc次，Lc对应每个信息比特所包含的伪码片数，包含每一比特Lc次重复的序列与另一个随机数发生器产生的PN序列c(n)相乘。然后在该序列上叠加高斯白噪声和形式为i(n)=Acosw0n余弦干扰下次信号，切余弦干扰信号的振幅满足条件A<Lc。在解调器中进行与PN序列的互相关运算，并且将组成各信息比特的Lc个样本进行求和。加法器的输出送到判决器，将信号与门限值0进行比较，确定传送的数据为+1还是-1，计数器用来记录判决器的错判数目。(According to the principle, first some straight expansion random number generator produces a series of binary data (+ 1-1), each information bit repetitive Lc times, Lc for each information bit contains PN code piece count, embraces each bit Lc times repeated sequence and another random number generator produces PN sequence c (n) multiplication. Then in the sequence superimposed on gaussian white noise and forms as I (n) = Acosw0n cosine interference next time signal, cut cosine interfering signal amplitude satisfy conditions A < Lc. In the modem with the cross-correlation operation PN sequence, and the information will comprise the Lc a sample bits peace. The output of the adder judgment device, will signal to compare with threshold 0 data transmitted, determine for+ 1 or-1, counter is used to record the number victimised judgment. )

attached file contains matlab code

matlab GUI界面B样条曲线绘制，内附说明文档,可以移动控制点(B spline curve drawing program with matlab GUI interface )

programs for economic load dispatch using hybrid genetic algorithm part 4

用MatlAB实现的无线定位的基本算法CHAN算法，还有其改进算法(Wireless location using MatlAB achieve the basic algorithm CHAN algorithm, as well as its improved algorithm)