multipath_chann

用matlab在极坐标下画天线方向图，可以运行，已经测试过(In the polar coordinates with matlab draw Antenna)

说明：  非常实用的几个程序代码，请大家继续编程进行完善。(Several very useful code, please continue to improve programming.)

Princilpe Component Analysis n

众所周知，欧拉角和四元数是存在对应关系的。后者用于导航等时不存在死区现象，而且，精度高，计算简单。(known, the Euler angles and quaternion is a correlation between them. Navigation for the latter did not exist at the Dead phenomenon, and with high accuracy, is simple.)

说明：  用fir滤波器消除语音信号中50Hz的工频信号，matlab程序(Using fir filter to eliminate the voice signal in the 50Hz frequency signal, matlab program)

自适应凹口滤波干扰对消，单一频率的方法的实现。很有效果(Adaptive notch filter interference cancellation, single frequency)

driven cavity matlab code

在压制式噪声调频干扰环境下，应用时频分析的方法（STFT）对线性调频信号进行时变滤波，对干扰进行了初步的抑制。(Under suppress noise FM interference environment, the application method (STFT) variable frequency analysis filtering chirp signal when a preliminary interference suppression.)

包含了偏微分方程图像处理一些经典算法的matlab实现，如热扩散、非线性扩散等，便于快速入门(Partial differential equations contain a number of classical image processing algorithm matlab realize, such as thermal diffusion, nonlinear diffusion, etc., to facilitate the rapid entry)

说明：  PM的一种常用的实现方法是用调制信号控制谐振回路或移相网络的电抗或电阻元件以实现PM。 (Generation of time signal from wave spectrum (Jonswap,PM,etc.) and re-build wave spectrum.very good，you have look for best for your study!I hope help you to the job Simple program for time signal generation from wave spectrum, can be applied for oofshore eng. naval arch. student in model test.)