pinyuxiangguan

该程序完成了一个DPSK通信系统的仿真，用均匀随机数发生器产生01比特对，用差分编码将每2比特符号映射到4种信号点中之一个，绘制出了DPSK的误码率。( This procedure has completed a DPSK communications system s simulation, produces 01 bit right with the even random number generator, maps with the differential coding every 2 bits marks to of 4 kind of signal locations, drew up the DPSK error rate. )

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.

This is a simple Snake game application in c#, with source codes and executable file... Enjoy it!!!

PSNR for image processing

说明：  参数分离机器人手眼视觉标定算法，非常实用，可以直接运行。(Robot hand-eye visual separation parameter calibration algorithm is very practical and can be directly run.)

in this program the horizon line detection is found out by using canny edge detector and hough transform.

Code to run the Non-negative Matrix Factorization algorithm as presented in the Lee, Seung 1999 Nature paper.

数值微分通过matlab实现，对于初学者非常有用。从书上下载的源代码。(Achieved by numerical differentiation matlab, very useful for beginners. Downloaded from the book source code.)

说明：  matlab程序 遗传算法选择程序 敬请各位高手指教(Matlab procedures genetic algorithm selection process please enlighten you master)

说明：  数字通信中的平方根Nyquist滤波器设计，含说明文件和matlab仿真代码(The square root Nyquist digital communication filter design, including documentation and matlab simulation code)