matlabret

门式刚架辅助设计工具箱 ，计算工具箱好用(rigid frame)

这个matlab代码是实现基于最小二乘算法的常数模算法。较最小均方误差算法，该算法收敛速度较快。(Matlab code to achieve the constant modulus algorithm based on least squares algorithm. Than the minimum mean square error algorithm, the algorithm converges faster.)

说明：  本程序为EMD（经验模态分解算法）用于MATLAB的M文件，内含EMD分解所需的三次样条插值算法(This procedure for the EMD (empirical mode decomposition) for the MATLAB M-files containing the required EMD decomposition of cubic spline interpolation algorithm)

说明：  双包层光纤的本征值求解. 两个边界的本征值方程连解。 (eigenfunction of bouble clading fiber )

说明：  一本关于蚁群算法的书籍,可以帮助初学蚁群算法的人提供思路(book on the ant colony algorithm)

本工程实现了将三路合成的DSB信号用椭圆滤波器（低通，带通，高通）滤出； 其中的freqz函数，filter函数，fft函数都自己实现。 每种滤波器都分别用专门的函数分别写出，可以模块化。( This project will be three-way synthetic a DSB signal elliptic filter (low pass, band-pass, high pass) filter out Freqz function of which, the filter function, fft function. Each filter are, respectively, with a special function, respectively, to write, can be modular.)

FM信号的产生与接收,给定调制信号和载波信号进行信号调制，绘制频谱并且解调已调信号(FM modulation simulator)

kaiser滤波：用kaiserord生成阶数，及beta值(filter using kaiser)

基于MATLAB的Simulink动态仿真集成环境.(MATLAB-Simulink based dynamic simulation integrated environment.)

针对OFDM系统，分成链路级仿真和系统级仿真两个部分。为了降低系统级仿真的复杂度，采用链路级仿真的部分结果。(It contains mainly two parts, i.e. link-level simulator and system-level simulator. Link-level simulator focus on a single-cell single-user scenario, where signal is transmitted from tx, and estimated at rx. Comparing the difference in tx/rx signal, the error rate can be found out. The output of the link-level simulator is the BLER/BER vs. SNR mapping table, that can be used for the system-level simulation. System-level simulator focus on a multi-cell multi-user scenario. For the sake of simplicity, it takes the mapping table aquired in the link-level simulation, measure the actural SNR, and finds the corresponding error rate. Link-level simulator support SISO, 1 by x MRC, 2 by 1 STBC/SFBC, 2 by 2 Alamouti, x by 1 Antenna selection, x by y antenna selection. System-level simulator, currently support only SISO and 1 by 2 MRC. To start with, go into the folder sys_link_simu, and excute the following commond from matlab: sys_link_simu_func(a,b) where a is the link ada)