gprmax-geoaout

此算法描写了如何选择初始轮廓的位置，以及怎样控制初始轮廓的演化。(This algorithm describes how to select the location of the initial profile, and how to control the evolution of the initial contour.)

基于小波软阈值的信号去噪 小波去噪 小波分解与重构(Soft threshold based on wavelet signal denoising wavelet decomposition and reconstruction wavelet denoising)

灰度变换增强程序 1.灰度变换增强程序 2.直方图灰度变换 3.直方图均衡化程序举例 4.直方图规定化程序举例 1.线性平滑滤波 2.中值滤波器 3. 4邻域8邻域平均滤波算法 1.低通滤波器 2.布特沃斯低通滤波器图像实例(Enhanced gray-scale transformation procedure 1. Enhanced gray-scale transformation procedure 2. Histogram gray-scale transformation 3. Histogram equalization procedure for example 4. Histogram specification procedure for example 1. Linear smoothing 2. Median filter 3.4 8 neighborhood neighborhood average filter algorithm 1. low-pass filter 2. Butewosi Image examples of low-pass filter)

log operator for edge detection

Modal analysis in Matlab to calculate all modal parameters from a structure

用matlab实现三类三维的特征选择，效果特别好(feature selection code of matlab)

优秀论文及配套源码。Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术，该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列，每一个序列称为一个固有模态函数(IMF)，然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱，汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理，将信号中真实存在的不同尺度波动或趋势逐级分解出来，最终用瞬时频率和能量来表征原信号的频率含量。 本文研究了基于HHT的暂态电能质量扰动检测方法，介绍了HHT的基本原理和利用HHT检测电能质量多扰动信号的实现方法。仿真试验表明该方法可以实时检测扰动的起止时刻，持续时间和扰动幅度，适用于电能质量多扰动的监测和辨识系统。 (Hilbert-Huang Transform(HHT) is a new non-stationary signal processing technology，including the Empirical Mode Decomposition(EMD) and Hilbert spectral analysis．In this method，arbitrary non-stationary signals was divided into a series data sequence with different characteristic scales after the first EMD treatment，each sequence is called an intrinsic mode function(IMF)，and then each IMF component gained corresponding the Hilbert spectrum though Hilbert spectrum analysis，a summary of all Hilbert spectrum assembled to the spectra of the original signal．In essence，this method is a stable processing for non-stationary signal，which decomposed the different fluctuations or trends in the signal in rum，and represented the frequency content of the original signal using the final instantaneous frequency and energy． This paper study a method to detect power quality disturbances based on the HHT，in which the principle and the realization of the HHT and the realization of power quality disturbance)

Base driver for Dialog Semiconductor DA9030 DA9034.

Abaqus焊接传热分析中高斯热源子程序(Abaqus subroutine DFlux of Gaussian Heat Source for welding analysis)

FEM膜单元模态、静力计算，matlab程序(Calculation of FEM membrane element modal, static, matlab program)