最佳升余弦滚降系统的多径传输

用matlab编写的用中心差分法求解二自由度问题(Prepared using matlab central difference method with two degrees of freedom problem)

OFDM系统仿真，采用1024子载波，内含卷积编码，交织，QPSK调制，上、下采样滤波，信道估计等(OFDM system simulation, using 1024 subcarriers, including convolutional coding, interleaving, QPSK modulation, the upper and lower sampling filtering, channel estimation, etc.)

Reading a PGM image file

matlab PID程序 matlab PID程序 matlab PID程序(matlab PID program)

线性四叉树编码，包括四进制和十进制数据的编码(Linear quadtree coding, including four hexadecimal and decimal data coding)

内含结构拓扑优化的众多数学规划方法，其中包含最小二乘法、移动渐近线法等等(The file includes many methods for topology optimization，such as the method of moving asymptotes.)

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.)

ROLE OF POWER ELECTRONICS IN RENEWABLE ENERGY SYSTEMS

通过抖动编码，将图像转换成灰度图像；用matlab实现(convert the image to gray level image by using the jitter code method)

基于双树复小波变换的心电去噪方法研究，比较详细的资料( ECGDenoising Based on Dual Tree Complex Wavelet Transform)