threelevel

采用灰度变换的方法增强图像的对比度 P0304：直方图均匀化，采用MATLAB编译(Gray-scale transformation using the method of contrast-enhanced images P0304: Histogram of homogenization, using MATLAB Compiler)

Array Antenna simulation using Matlab

有关于平衡载流子寿命的Matlab程序,微电子基础实验课程实验内容.(Matlab program for the balance of carrier lifetime, microelectronics basis of experimental course experiment content.)

说明：  这是一个基于PQ控制的逆变并网模型，可以完美运行。(PQ control, perfect operation.)

对原始数据进行弱化处理的程序。用MATLAB编制(Weakening of the raw data processing procedures. Compiled with MATLAB)

Author: Xianju Wang Summary: 2 Dimensional Spectral Estimation MATLAB Release: R12 Description: Estimating the power spectrum associated with a random process is desirable in many applications. This package includes four important 2-D spectral estimation methods.(Periodogram, Autorrelation Method, Covariance Method, Modified Covariance Method).(Author : Xianju Wang Summary : 2 Dimensional Spectral Estimation MATLAB Rele ase : R12 Description : Estimating the power spectrum associated with a random process is desirable in many applicati ons. This package includes four important 2-D's pectral estimation methods. (Periodogram. Autorrelation Method, Covariance Method. Modified Covariance Method).)

spectrum_sub是谱减函数，使用谱减的方法达到降噪的目的，对于一般的平稳信号效果特别好。(Spectrum_sub is spectral subtraction function, using the spectral subtraction method to achieve the purpose of noise reduction, for general stationary signal effect is very good.)

IFS,平移，旋转的，非常简洁，可以迅速的带入数据，即可出现图像(IFS, translation, rotation, and very simple)

说明：  采用不同的方法对HRV信号进行功率谱估计。选择矩形窗，汉宁窗，汉明窗，Blackman窗(Using different methods of HRV signal power spectrum estimation.Select the rectangular window and hanning window, hamming window and Blackman window)

Circuit Analysis II with MATLAB applications