COmpression

extern的用法，本文较详细的介绍了extern的用法及注意事项。(extern usage, this paper describes in detail the usage of extern and precautions.)

Convert from latitude, longitude, and altitude (geodetic with respect to the WGS-84 ellipsoid) to a position vector in the Earth-centered, Earth-fixed (ECEF reference frame.

文档，瑞利衰落信道的matlab源程序，可以单独运行。 -word documents, Rayleigh fading channels Matlab source that can run.(Rayleigh fading channels Matlab source that can run.)

光学工程对光路的追迹应用很多 本程序可以很轻松的追迹反射光线(Optical engineering applications optical path tracing many of the programs can easily reflect light tracing)

mri brain image segmentation

粒子群算法（PSO）整定pid控制参数，比传统Z-N整定方法要好，内附matlab程序与simulink模型(Particle swarm optimization (PSO) is better than traditional Z-N tuning method in tuning PID control parameters. It includes matlab program and Simulink model.)

《Matlab7.x数字信号处理》源码，人民邮电出版社06年版，学习DSP算法很好的参考资料( Matlab7.x digital signal processing source, and the people s version of Posts )

simulink model for buck converter

Serial Port RS-232 Communication Terminal Tool, with Hex byte-by-byte order sender and receiver.

说明：  在Bialas與Karwan的第 解演算法 [13] 則是搜尋限制式解域中的端點，並且歸類為已搜尋端點集合、未搜尋端點集合、可行解端點集合、非可行解端點集合，再從可行解端點集合中找出使高階目標值最佳的端點。(Bialas and Karwan in the first solution algorithm [13] is the search for solutions in the domain of endpoint constraints, and the endpoints are classified as a collection of search, not search a collection of endpoints, the endpoint set of feasible solutions, non-feasible solution side point set, then the endpoint from the set of feasible solutions in order to identify the best target endpoint.)