Matlab仿真1.1_shenchao

snake demo,轮廓线演化程序演示，国外优秀代码，图像处理、数值计算相关方向的应该有用(snake demo, contour evolution program demonstrates, foreign good code, image processing, numerical calculation related to the direction should be useful for)

说明：  牛顿法的一个有用介绍,对学习用牛顿法求解非线性方程的有用(a usful description of newton method )

cohere(x,y,M) computes the coherence function using successive DFTs of length with a Hanning window and 50 overlap. (The window and overlap can be controlled via additional optional arguments.) We see a coherence peak at frequency cycles/sample, as expected, but there are also two rather large coherence samples on either side of the main peak. These are expected as well, since the true cross-spectrum for this case is a critically sampled Hanning window transform. (A window transform is critically sampled whenever the window length equals the DFT length.)

Adaptive Equalization for Digital Communications

Schroeder 混响器，feedback comb filters，参考CCRMA。(Schroeder Reverberators)

说明：  对图像进行TA置乱，请根据图像大小自行设定周期。(TA scrambling the image, the image size according to set their own cycle.)

说明：  主要是ezw编码过程中的量化器的编写代码，大家可以参考一下。(Encoding process is mainly ezw quantizer in the code, we can refer to.)

信息论与编码中LZ系列LZ78编码源文件(LZ series of information theory and coding LZ78 encoding the source file)

The early detection of arrhythmia is very important for the cardiac patients. This is done by analyzing the electrocardiogram (ECG) signals and extracting some features from them. These features can be used in the classification of different types of arrhythmias. In this paper, we present three different algorithms of features extraction: Fourier transform (FFT), Autoregressive modeling (AR), and Principal Component Analysis (PCA). The used classifier will be Artificial Neural Networks (ANN). We observed that the system that depends on the PCA features give the highest accuracy. The proposed techniques deal with the whole 3 second intervals of the training and testing data. We reached the accuracy of 92.7083 compared to 84.4 for the reference that work on a similar data.

说明：  MATLABC基础学习，GUI编程，降噪，图像处理-去噪、压缩（Matlab GUI）(MATLABC basic learning, GUI programming, noise reduction, image processing-denoising, compression (Matlab GUI))