spnet

基于时频分布的跳频信号分析研究，短时傅立叶变换，魏格纳分布，伪魏格纳分布，平滑伪魏格纳分布(Based on the distribution of time-frequency analysis of frequency hopping signals, short-time Fourier transform, Wigner distribution, pseudo-Wigner distribution, smoothed pseudo-Wigner distribution)

由于通常的通信信道的冲激响应的稀疏性，使得NLMS算法的收敛速度还有待提高。所以，近年来，有学者提出了成比例的归一化的均方误差算法(PNLMS)。PNLMS在自适应过程的开始阶段有着很快的收敛的速度，但是迭代过程越往后，收敛速度越慢。于是，众多学者提出了许多的改进算法。本程序是通过matlab仿真对近年来流行的PNLMS,IPNLMS,MPNLMS等算法进行的仿真程序(As usual communication channel impulse response sparse, making the convergence rate of NLMS algorithm to be improved. Therefore, in recent years, some scholars have proposed a proportional to the normalized mean square error algorithm (PNLMS). PNLMS the beginning of the adaptive process has a fast convergence speed, but the more backward iterative process, convergence slower. Thus, many scholars have made many improvements in algorithms. Matlab simulation of this program is popular in recent years PNLMS, IPNLMS, MPNLMS other algorithms of the simulation program)

基于MATLAB环境下的运用直接法求解线性方程组的对应的代码 简单易学 便于初学者消化使用(Based on MATLAB environment using a direct method for solving linear equations corresponding code is easy to learn for beginners to use digest)

此程序分别用显式格式和隐式格式对不可压库埃特流进行数值求解。(This program can be used to solve the Incompressible Couette flow numerically with an explicit scheme and implicit scheme respectively.)

说明：  NOMA的吞吐量的计算，可以正确计算出结果。实测有效。(The throughput of NOMA can be calculated correctly. The measured results are effective.)

这个程序用于提取信号的包络，用以求取信号的轮廓得到信号的主要信息(This procedure is used to extract the signal envelope, to obtain the main information of the signal to strike a signal contour)

Face Recognition By PCA using SVD technique .

幻灯片课件，详细的介绍了用matlab进行绘图的方法，比较基础，建议初学者好好看看，很有用。(Courseware slides and detailed introduction to using matlab graphics methods, comparative basis, it is recommended for beginners a good look at, very useful.)

积分方程的数值解（matlab代码）利用MATLAB求解积分方程的数值解问题(The numerical solution of integral equations (matlab code))

关于人脸识别的PCA-LDA算法，可成功运行。(a useful program, can be run successfully!)