fem.2.1

说明：  设计一个有干扰的直接序列扩频通信系统， PN码由m序列产生器产生，经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”，将接收信号进行解扩，判决，得到用户的信号检测结果，绘制不同的扩频增益（增益值为10，30，50）下，误比特率随信噪比Eb/N0的变化曲线。(Design of a direct sequence spread spectrum interference system, PN code generated by the m sequence generator, after white Gaussian noise channel. Receives the signal at the receiver, including &quot useful signal+ Gaussian white noise+ interference&quot , will receive the signal despreading, judgments, get the user' s signal test results, draw a different spreading gain (gain value of 10,30, 50), the BER curves with the signal to noise ratio Eb/N0.)

matlab 灰度图像处理去噪 可以有效改变图像的边缘化问题(matlab grey processing )

IEEE802.11.a的matlab仿真代码(Matlab simulation code of IEEE802.11.a)

说明：  主要实现数表建立，查找功能，实现对数据的管理(Mainly the number of tables to achieve the establishment of search functions, to achieve the data management)

基于LUT的数字预失真MATLAB代码 (LUT digital predistortion)

子空间匹配追踪matlab程序，首先选择2K个原子，然后通过校正选择其中的K个原子。(Subspace matching pursuit matlab program, first select 2K atoms, and then select one by correcting the K atoms.)

非线性方程组的最速下降法，数值计算基于matlab的源程序。(Steepest descent method based on the Matlab nonlinear equations, numerical calculation)

Detection of life threatening Arrhythmias are important for successful defibrillation therapy. This paper provides an idea about arrhythmia detection based on surface ECG analysis.

use alfa beta filter to sound file to overcomr noise

通过MATLAB实现含分布式电源的配电网重构，可考虑多种类型负荷模式(MATLAB realization by containing distributed power distribution network reconfiguration, we can consider various types of load mode)