matlabProgramming-Fundamentals

检测时间序列的平稳性，可以说是一种新的检测混沌的方法(Detect stationary time series, it can be said is a new method of detection of Chaos)

好不容易找到的matlab的时频分析工具箱，添加的方法不说了，里面的工具很全，挺好用的，希望对大家有帮助。(Finally found the time-frequency analysis matlab toolbox, adding that the method, which is full of tools, very good use, and would like to help everyone.)

说明：  gm11的matlab程序，天然气消耗量的例子进行建立gm11模型(Matlab program of gm11,Establishment of gm11 model with examples of natural gas consumption)

采用第一种ESPRIT算法进行空间阵列信号的频率估计(ESPRIT algorithm using the first spatial array signal frequency estimation)

信源数估计算法AIC，aic准则不是一致性估计，即在大快拍数的场合他仍然有较大的误差概率(Source number estimation algorithm AIC, aic Code is not consistent estimate that in the case of a large number of snapshots he still has a greater probability of error)

说明：  主要对比了干扰对齐算法中，最大信干噪比算法，交替最小化算法，最小干扰泄露算法，并且通过改变天线数量，用户数量，自由度，观察三种算法性能(alignment algorithms including max-SINR,min-WIL,min-ALT)

MatLab自编的均值滤波、中值滤波、高斯滤波 图像处理函数。(MatLab self mean filtering, median filtering, Gaussian filtering image processing functions.)

反映振动信号分布特性的数值统计量，是归一化的4阶中心矩 (Numerical statistics reflect the distribution characteristics of the vibration signal is normalized 4-order central moments)

提出了一种鲁棒的多水印嵌入与检测算法,该算法基于小波域,且提取水印时不需要原始图像,保护了原始图像的安 全。在该多水印算法中,提出并使用了一种将密码学和常规的数字水印制作方法- - - 叠加法和量化调制法,有机结合起 来的新的方法,在水印嵌入时,不同的水印,生成与该水印相关的不同的密钥,在进行水印的提取时,用不同的密钥和待测的 图像提取出相应的水印。通过将密钥向第三方注册,可以获得对原始图像的所有权。(A robust multi-watermark embedding and detection algorithm, the algorithm based on wavelet domain, and extract the watermark without the original image, protect the safety of the original image. In the multi-watermarking algorithm, will be presented and used a conventional cryptography and digital watermarking production method--- superposition method and quantify the modulation method, combine the new method, the watermark embedding different watermark, associated with the watermark generating different keys, making extraction of the watermark when tested with a different image key and the corresponding extracted watermark. By the key to a third party registration, can be obtained ownership of the original image.)

QPSK软件接收机,对QPSK整个接收过程进行仿真，包括载频捕获、相位跟踪、滤波、判决等。(QPSK software receiver for receiving QPSK whole process simulation, including the carrier frequency acquisition, phase tracking, filtering, and other judgments.)