findpiv

最近在看HHT，这里有一个自己认为比较好的源程序。大家一起学习(Recently, looking at HHT, there is a relatively good source themselves think. Everyone learning together)

说明：  16Qam的Matlab/Simulink仿真系统，包含匹配滤波，载波恢复，位定时恢复等个重要模块，加深对16Qam调制解调系统的理解(16Qam the Matlab/Simulink system, matched filtering, carrier recovery, rehabilitation Timing important module, the better modulation and demodulation system 16Qam understanding)

说明：  psat最新版本的说明书，对先前版本的精简和补充(psat latest version of the specification, the streamlined version of the previous and supplements)

特征抽取代码，相关类型一应俱全，实验材料与代码均有(feature extraction)

很简单的交错网格有限差分正演程序，程序通俗易懂，非常适合初学者学习(Staggered grid finite difference)

这是关于卷积编码的程序，希望对大家有所帮助．(This is on the coding process, we hope to help.)

用FFT对连续信号做谱分析一理解频谱泄漏的概念 (FFT matlab Hamming)

declustering algorithm of FCM

二次规划源码（精通matlab最优化计算第12章）(Quadratic programming source (proficient matlab optimization calculation Chapter 12))

余弦波是渐变的，当ωt+φ的取值变化量很小时，Y的变化量也是很微小的。余弦波的这一特性保证了嵌入水印后相邻字符灰度值差别不大，人眼无法识别，从而保证了水印的不可见性和图像质量。(Cosine wave is gradual, and when ωt+ φ values variation is very small, Y amount of change is very small. Cosine waves This feature ensures that watermarked gray value of adjacent character is not very different, the human eye does not recognize, thus ensuring the invisibility of watermark and image quality.)