memd分解

边缘提取技术边缘是图像对视觉的最主要特征，因此在计算机视觉技术中提出了多种检测边缘的算法。由于各种原因，图像常常受到随机噪声的干扰，经典的边缘检测的结果常常是将噪声误检为边缘点，而真正的边缘由于噪声干扰却可能被漏检。因而对于被噪声污染的图像来说，一种好的边缘检测方法应具有良好的噪声抑制能力，同时又有完备的边缘保持特性。(After analysing the soft threshold funetion,the smoothness threshold function is proposed by modifying the soft threshold function.because this function keeps smooth in the entire value range,some important details in the process of image denoising can be held. Firstly we detect the edge of the noising image. )

正弦信号通过幅度调制（AM,DSB,SSB）所得到的时域波形及频域波形(AM,DSB,SSB waveforms in frequency- domain and Time domain)

matlab编写的程序，求解阵列天线方向图、阻抗匹配以及电流分布等(matlab program, array antenna pattern、impendance matching and current distribution)

读取IGS文件（观测文件*.*o 广播星历*.*n；精密星历*.sp3；修正电离层对流层）。均是matlab函数形式，可直接用于GPS matlab数据处理(reading IGS files (oberservation file*.*o navigation files*.*n precise orbit*.sp3) correct errors of Ionosphere delay and Tropsphere delay)

teager能量算子MATLAB代码，应用于信号分析(Teager Energy Operator MATLAB Code)

说明：  简要阐述BPSK调制解调原理，用MATLAB进行仿真，附上仿真源程序和仿真结果，对结果进行分析。(The principle of BPSK modulation and demodulation is briefly described Matlab is used for simulation. The simulation source program and simulation results are attached to analyze the results.)

16QAM bit error rate

ofdm系统信道估计，基于LS,LMMSE,LRMMSE等准侧。是学习的好工具。(ofdm channel estimation system, based on LS, LMMSE, LRMMSE other potential side. Is a good tool for learning.)

机器学习中几种典型的分类算法，SVM, ML, Gaussian Mixture Model等(typical classifiers(SVM, ML) in ,machine learning.)

由于显卡或者显示器的原因会出现实际输出的图像在亮度上有偏差，而Gamma曲线矫正就是通过一定的方法来矫正图像的这种偏差的方法.(Or because of the graphics display image will appear in the actual brightness of the output deviation, the Gamma correction curve is corrected by a certain method to the method of this bias image.)