qinzhende

本程序是用于信号频谱分析的实验程序。 主要功能是进行信号的幅值谱计算；同时可完成在选定范围内谱峰的精确频率、幅值和相位计算（计算结果为cos相位）。( This procedure is used to test the program signal spectrum analysis. Main function is to calculate the signal amplitude spectrum the same spectral peaks can be completed within the selected range of precise frequency, amplitude and phase calculation (calculated as cos phase).)

用MATLAB程序，实现了在空域下，对图片的亮度值写入秘密信息的程序，很有参考价值(With the MATLAB program, implemented in the airspace, the brightness value of the picture written procedures for confidential information)

基于matlab的指纹库指纹识别设计，matlab源码和指纹库。(Matlab-based fingerprint identification fingerprint database design, matlab source code and fingerprint database.)

通信系统仿真中，QPSK调制下的高斯信道Matlab仿真(the simulation of the Gaussian channel in communication system )

the simulation provides computation of target reflectivity data in the deficient elevation domain. Simulations are implemented to test the decoupled least-squares technique for high resolution spectral estimation of target reflectivity. all seven (7)files should be downloaded for the simulation to work. (dls3D.m,estimate.m,get2S1Data.m,getConstraints.m, getImageData.m,getPixelData.m, getSLICYData.m)

该压缩包实现二维的DCT变换和逆DCT变换，可以对图像做DCT变换和逆DCT变换，实现非常简洁，速度很快。(the compressed 2D DCT and the inverse DCT. Images can be done DCT and inverse DCT achieve a very simple, very fast.)

apply a lowpass filter to a watermarked audio signal to test the robustness input : vector representing the watermarked audio file output : vector representing the watermarked audio file corrupted by a highpass filter

帧差法提取背景的matlab程序，可以很好的提取图像的背景(Frame difference method to extract the background matlab program, you can extract image background)

在matlab环境下实现自相关与功率谱密度的计算()

求不规则波导的散射参数的matlab程序，使用的matlab的微分工具箱（有限元法），总的来说还不错，附带实验报告。(Scattering parameters of irregular waveguides matlab program, using a differential matlab toolbox (finite element method), on the whole pretty good, with a test report.)