Linear_Filtering

说明：  matlab在图像处理中的重要代码！很详细的过程(matlab important in image processing code!)

傅里叶光学仿真，可模拟各种平顶高斯光束并对其参数进行设置。(Fourier optics simulation, can simulate a variety of flattened Gaussian beam and its parameters.)

this is matlab code. Very easy to use

说明：  本文提出了一种基于混沌加密的DCT域二值图像数字水印算法.该算法首先利用混沌序列将含有版权信息的有意义二值图像水印进行加密,然后利用人眼视觉系统(HVS)的特性将原始载体图像进行块分类,最后将不同强度的水印分量嵌入到不同类的图像块DCT中频系数中去.利用混沌序列对水印进行加密,使水印本身具有安全性,对数字作品进行双重保障.通过高斯噪声,椒盐噪声以及JPEG压缩和剪切等攻击试验,表明了该算法具有较好的鲁棒性.(Encryption in DCT domain is proposed. Firstly, the meaningful binary image watermark containing copyright information is encrypted by using chaotic sequence, and then the original image is classified by using the characteristics of human visual system (HVS), Finally, the watermark components with different intensities are embedded into the DCT intermediate frequency coefficients of different types of image blocks. Chaotic sequences are used to encrypt the watermark, so that the watermark itself has security and double protection for digital works. Experiments on Gaussian noise, salt and pepper noise, JPEG compression and clipping show that the algorithm has good robustness)

说明：  c语言与matlab接口：编程与实例\c语言与matlab接口：编程与实例(c language and matlab)

single layer perceptron

说明：  QPSK完整的调制解调程序，直接在matlab里运行就能得出准确的结果，方便(QPSK modulation and demodulation complete program to run directly in matlab accurate results can be obtained to facilitate)

viterbi simulation K = 7 in qpsk modulation

C++ balagurswamy E-Book for new beginners in c++.

ansys有限元分析软件的压电喷射模态分析适用于ansys (ansys piezoelectric transient)