Modern-communication-system

齿轮传动参数测定和公法线公差计算 可以用来优化齿轮的传动系统(Gear parameters measured and calculated tangent tolerance can be used to optimize the transmission gear)

说明：  通信原理方面的一些基础matlab程序,包含数字基带传输系统中升余弦滚降系统,最佳基带系统,基带信号眼图,OOK,2PSK,2FS,MPSk,DSB,SSB,VSB(Some basic aspects of communication theory matlab program, including digital baseband transmission system Cosine system, the best base-band system, the baseband signal eye diagram, OOK, 2PSK, 2FS, MPSk, DSB, SSB, VSB)

Analog communication for matlab(Analog communication for Matlab)

这是大名鼎鼎的薛定宇的《控制系统计算机辅助设计》（第一版）的代码。第一版与第二版区别还是挺大的。(It is famous on Compensation for " Computer Aided Control System Design" (first edition) code. First edition and second edition of the difference is big.)

Direct sequence spread spectrum (DSSS) communication systems has been widely used in these years for its advantage of wide spectrum, low working Signal-to-Noise ratio (SNR), anti-interference, anti-multipath effect and capability of LPI and LPD. They are increasingly replacing conventional communication forms and obtaining extensively applications in modern military and commercial communication systems, for example, CDMA communication system, GPS , measuring and control system, satellite chain, identification of friend or foe and etc. Therefore, corresponding DSSS electronic counter technique becomes a big problem to solve in electronic warfare domain. DSSS electronic counter technique including blind detection, blind parameter estimation and spreading sequences estimation. For the issue of DSSS electronic counter technique of DSSS/QPSK signal damaged by strong additive white Gaussian noise (AWGN), the main research content in this dissertation as follow.

MATLAB6实例教程 _ 郝红伟编著_ - 北京_ 中国电力出版社, 2001年9_0(Tutorial examples MATLAB6 edited by郝红伟_ _- _ Beijing China Electric Power Press, 2001 9_0)

说明：  用于计算幂率分布幂指数程序，在给定的一组分布中，判断该分布是否服从幂率分布(Used to calculate the power law distribution of power index procedure)

Numerical integral, Romberg integral, matlab .m file, source code.

Image enhancement code using matlab algorithm. Very good performance.

说明：  边射直线阵天线波束方向图演示程序 直线阵最常见的工作模式(Broadside linear array antenna beam pattern demo linear array of the most common mode of)