MATLAB code for PSK modulation and demodulation

说明：  基于小波变换的多尺度图像边缘检测matlab源代码(在Matlab7.0下运行) (Based on wavelet transform multi-scale edge detection matlab source code (at run Matlab7.0))

实现MSK调制过程，通过定义入手，先计算相位，然后分两路调制(modulate msk with noise)

一个7段的显示器，及按一定顺序循环得到的结果，可重复使用(A 7-segment display, and by a certain sequence and cycle the results obtained can be reused)

法国人的EMD分解镜像延拓方法，希望能用到(French mirror extension EMD decomposition method, hoping to)

Code for PPG signal to estimate the HR of subjects doing intense exercises

基于DCT的图像复制粘贴篡改检查算法源代码，仅供参考(DCT-based image copy and paste tamper check algorithm source code, for reference only)

floyd最短路算法、dijkstra最短路算法、求网络的最小费用最大流(floyd shortest path algorithm, dijkstra shortest path algorithm, find the minimum cost maximum flow networks)

本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。(This algorithm is 24-bit true color pictures of the luminance component of block DCT, quantization DCT coefficients and then use the parity properties of 8-bit grayscale watermark embedding map, and through the PN sequence of encryption to ensure the security of the watermark. Algorithm, the gray image into binary data stream, scrambling after the spread spectrum modulation, hidden in the host DCT coefficient quantization values, the extraction does not require the host signal, the blind watermark extraction.)

说明：  UT、UKF、UPF的课件，对学习非线性滤波的人员很有参考价值。(UT, UKF, UPF courseware, learning nonlinear filtering valuable personnel.)

用matlab简单实现傅里叶变换的源程序(Easy to use matlab implementation of the Fourier Transform source code)