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关于空时编码的仿真代码，希望对你有所帮助哈。(On space-time coding simulation code, I hope for your help Kazakhstan.)

comsol mytihpysics最新版4.3a中射频模块中关于光学和光子晶体的源码(source on the optical and photonic crystals in the latest version of the COMSOL mytihpysics to 4.3a and RF module)

Blowfish Algorithm is a Feistel Network, iterating a simple encryption function 16 times. The block size is 64 bits, and the key can be any length up to 448 bits. Although there is a complex initialization phase required before any encryption can take place, the actual encryption of data is very efficient on large microprocessors. Blowfish is a variable-length key block cipher. It is suitable for applications where the key does not change often, like a communications link or an automatic file encryptor. It is significantly faster than most encryption algorithms when implemented on 32-bit microprocessors with large data caches.

运用一种基于相位信息的2FSK与MSK的调制识别方法,来实现MSK与普通的2FSK的识别。通过计算机仿真表明,在SNRE10dB的条件下,该方法识别率达到了100 。 (Based 2FSK use and MSK modulation recognition phase information to achieve a common 2FSK MSK and identification. Through computer simulations show that, under SNRE10dB conditions, the recognition rate reached 100 .)

实现了gps软件接收机的信号产生，捕获和跟踪，采用改进的捕获算法和跟踪算法。(Realize the GPS software receiver signal generation, capture and tracking, an improved capture algorithm and tracking algorithm.)

这是雷达动目标检测的matlab实现方法，使用了FFT和FIR两种方法(This is a moving target radar detection matlab implementation methods, the use of FFT and FIR in two ways)

（1） 自行设计产生两个离散序列信号，对其进行相加、乘及卷积运算。 （2） 利用filter命令求下面LTI系统的冲激响应： y(n)－0.7y(n－1)－0.6y(n－2) + y(n－3) = x(n) + 0.5x(n－1) （3） 画出系统的零极点图，判断系统的稳定性、因果性。 （4） 绘出系统的频响曲线。(lisan time signal analyse )

这是一个matlab图像运算包，多幅图像的数学运算，包括图像的代数运算、图像的逻辑运算、图像的块和邻域操作、图像几何运算等(This is a matlab image computing package, multiple images of mathematics, including algebra images, images of logical operations, the image of the block and neighborhood operations such as geometric operations)

system identification with or without noise

说明：  Throughput optimization in wireless networks with multiple channels and multiple radio interfaces