EEMD

该程序模拟仿真QPSK传输系统，对通信系统学习有帮助。(Simulation program to realize QPSK transmission system)

说明：  神经网络滑膜变结构控制MATLAB和simulink仿真程序。(Variable structure neural network control of synovial MATLAB and simulink simulation program.)

说明：  利用时域有限差分（FDTD）仿真二维（2D）横磁波（TM）的传播，吸收边界条件为完全匹配层（PML）。(The use of finite difference time domain (FDTD) simulation of two-dimensional (2D) transverse magnetic (TM) the spread of absorbing boundary conditions for the perfectly matched layer (PML).)

对MATLAB的学习这会很有用，大家学习学习(On MATLAB will be useful to learn that we learn from)

对图像进行多级小波分解、重构。可用于提取图像的背景噪声(Multi-level image wavelet decomposition and reconstruction. Can be used to extract image background noise)

科学计算中的偏微分方程有限差分法,中国科学院研究生教程(Scientific Computing in the finite difference method of partial differential equations)

在matlab中调用libsvm的时候数据归一与反归一 在matlab中调用libsvm的时候数据归一与反归一(in Matlab call libsvm time data normalization and anti-normalization in Matlab emphasized libsvm used when a data normalization and anti-normalization)

核查的关键在于对核材料属性准确、有效地识别[1][2]。利用252Cf作为随机脉冲中子源，对其入射核材料所产生的诱发裂变中子脉冲信号进行采集、处理和分析，得到自相关、互相关、自/互功率谱、功率谱密度比等一系列参数，从而反演核材料内部的反应性的情况，便可用于分析和识别核材料，其基本原理就是252Cf中子源驱动噪声分析测量法[(The result shows that the trained Elman neural network is able to identify the characteristics of correlation function, to distinguish different concentrations, and the average recognition rate reaches 90 , with high robustness.)

此压缩包为图像识别中sift算法demo，以MATLAB为开发平台。(This archive sift algorithm for image recognition demo, for the development platform in MATLAB.)

小波包分解Welch平均法在焊接电弧声功率谱估计中的应用(Application of wavelet packet Welch method in the welding arc sound power spectrum estimation)