wai-dan-dao-shu-ju-chu-li

DDS(快速正交调制）生成正弦波形，利用相位累加字进行累加，查找查找表内容输出正弦数据，在通信领域应用很多，我采用的是matlab的simulink进行前期仿真(DDS (fast quadrature modulation) to generate sine wave, the use of the word to accumulate phase accumulation, content output sine lookup table lookup data in many applications in the communications field, I used to pre simulink of matlab simulation)

读取星历观测文件GPS和北斗卫星的可见卫星数作为输出(read ephemeris observation file to give out GPS and Beidou visible satellite number)

this book has description of introduction to algorithms.

smith chart用于微波和电磁波分析和计算，在通讯工程中有良好的应用。(smith chart used for analysis and calculation of microwave and electromagnetic waves in communication engineering has a good application.)

matlab model file to simulate QAM modulation and demod.

matlab通信仿真， 信道编码，好东西(communication matlab simulation, channel coding, good things)

说明：  用matlab编写的图像聚类程序，包涵仿真程序，两种算法。(Prepared to use matlab image clustering procedures, includes simulation program, two algorithms.)

Step down DC DC converter

image rendering system which is used to apply cleaning process of image

program for crossrelation