fdtd_3d

Audio Feature Extraction routine. this routine extracts the attack time of an audio source, by extracting the timing (sample) of the highest peak. The archive inclues a routine to extract the fft and display it. Requires Voicebox for matlab.

对一列信号进行eemd的分解以及解得到其各分量用eemdplot.m画出，因此只须运行eemdplot.m即可。(A signal decomposition of eemd and solution of its components with eemdplot.m draw, so only run eemdplot.m can.)

lms自适应算法实现谱线增强，通过该算法可以实现过滤宽带信号，保留窄带信号(LMS adaptive line enhancement algorithm, the algorithm can be achieved through filtering of broadband signals, narrowband signals retained)

Vector Component Analysis

对一维线相控阵和二维平面相控阵天线用matlab仿真出来，展示相控阵的方向改变能力和多波束形成能力。(One dimensional linear phased array and two-dimensional phased array antenna with matlab simulation, show the change of direction of the phased array and multi-beam forming ability.)

三维立体图形，带网格，用三维坐标描绘曲面走向(Three-dimensional graphics)

说明：  This file usesd Hopfield network to store patterns and to recall the full patterns based on partial input.

the grimson method is a computer vision program that take a film and define movement in it.it is use full for process films from public pplaces camera.

Visually select image using a GUI

本文基于马赫-泽德干涉结构的分布式光纤传感系统，采用模式识别的思想，详细论述了信号特征辨识和提取方法，提高了定位准确度，减少了误报！(Based on Mach- Zehnder interferometer structure of the distributed optical fiber sensing system, using pattern recognition idea, discussed in detail the signal feature recognition and extraction methods to improve the positioning accuracy and reduce the false alarm!)