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选择两张图片，一张水印图，一张嵌入图，将水印图进行Arnold置乱算法将其置乱，嵌入到嵌入图中，形成数字零水印，选用白噪声、高斯低通滤波、压缩、剪切、旋转攻击测试。以此观察图像鲁棒性(Select two pictures, a watermark and an embedded graph. We will scramble the watermark image with Arnold scrambling algorithm and embed it into the embedded map to form digital zero watermark. We choose white noise, Gauss low pass filtering, compression, shearing and rotation attack test. To observe the robustness of the image)

基于multisim的调频接收机 包含混频中放低放鉴频(FM receiver based on multisim mixing in the lower release contains discriminator)

批量处理NC文件的IDL pro 因为某些数据以月为单位存放，故利用这一程序可将对应的层次的时间序列进行整合，以便做进一步的气候统计分析(Batch NC file via IDL)

说明：  将图片从RGB空间转换到Lab空间的Matlab文件(The image from the RGB space is transformed into Lab space Matlab files)

自然图像中往往含有大量噪声，这些噪声可能服从一定的统计规律，因此可以采用顺序统计方法，对这些噪声加以剔除。(naturalimages always have lots of noise,and the noise may obey some statistical regularity，so we can use order statistic to get rid of the noise.)

CYCLOCONVETER matlab simulation modal desing

These are MATLAB codes for implementing Elliptical Bandstop and Bandpass filters for use in Digital Signal Processing

PLOTTING PHASOR QUANTITIES USING MATLAB IN PSCAD A simple case which uses MATLAB for ploting phasor quantities. Apply the fault during simulation run and observe phasor quantities (you can change type of fault) WARNING * This case only works if you use the Compaq/Intel Fortran Compiler. (PLOTTING PHASOR QUANTITIES USING MATLAB IN PSCAD A simple case which uses MATLAB for ploting phasor quantities. Apply the fault during simulation run and observe phasor quantities (you can change type of fault) WARNING * This case only works if you use the Compaq/Intel Fortran Compiler. )

基于普通的SLM方法降低OFDM的PAPR，并验证了M（子载波数）的作用(reduce the PAPR of OFDM)

说明：  这是一个交叉验证函数, 用来选取训练集, 和测试集. 请放在matlab的工具箱中使用(this is a crossvalind. please use it in the matlab tools.)