chaios

数字水印DCT算法设计，可以进行优化，希望大家一起将程序优化(DCT digital watermarking algorithm designe，it can be optimized and I hope that everyone can work together to optimized it.)

共炮点地震记录合成，添加不同比例噪声，进行小波变换去噪处理，得到比较理想的效果(the synthetic seismic record of common shot, add different noise, and do wavelet transform on it, then we can get a better record)

this file contain 2 pdf about integeration in matlab and some code as following: QR decomposition Jacobi method Choleskey Decomposition householder method Genetic Algorithm least_squares method gauss_seidel method

使用自相关方法去除信号中的高斯白噪声，提取出目标信号，对做信号处理的十分实用(Using the autocorrelation method to remove Gaussian white noise in the signal, extract the target signal, very practical to do signal processing)

说明：  基于matlab的FIR低通滤波及其实现过程(Based on the FIR low-pass filter matlab and its realization)

用matlab结合窗函数法、等波纹设计法实现FIR滤波器(Combined with matlab window function method, such as corrugated FIR filter design method)

做数据处理，比如做智能诊断样本创建的时候， 如果采集信息有限，但数据量又很大， 可以选择将原始信号就行降采样，来获得更多更可靠的样本(Good collection of information is limited, but the amount of data is so big occasion)

IEEE TRANSACTIONS ON SIGNAL PROCESSING定位与跟踪经典文献“Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors: Analysis and Solution”的Matlab程序。进行信号源被动定位与跟踪研究的童鞋可下载进行学习研究。(IEEE TRANSACTIONS ON SIGNAL PROCESSING positioning and tracking classic literature " Source Localization Using TDOA and FDOA Measurements in the Presence of Receiver Location Errors: Analysis and Solution" in Matlab.)

介绍一种有关基于信号统计特性的频谱检测方法(statistics charcater spectrum detection)

一个自动画折线图的DEMO，需要这方面的同学可以下载下来看看(A self-animated line graph DEMO, this need can be downloaded the students look)