gray-theory

瑞利分布信号直方图的产生已经仿真，已经调试通过。(Rayleigh distribution histogram has generated signal simulation, debugging has been passed.)

已有的文本过滤受限，所以对现有的文本过滤软件进行了算法改进，对现有的问题进行分析，故而有着实用价值，但是文本过滤仍然有着不能弥补对图形图象的无效，所以有必要对图象视频等进行过滤(Already limited text filtering, so the existing text filtering software algorithms to improve on the existing analysis of the problem the club would have practical value, but still have a text filter should not make up for the graphic image is invalid, there is necessary to filter the video image)

code for water marking

可一步做到计算电力系统的节点有功矩阵的程序。(Can step do calculation of power system node meritorious matrix program. )

说明：  很好的扩张滤波算法 精度高 时间短 适合导航运算(The expansion of good short time filtering algorithm for high precision navigation operations)

说明：  噪声中正弦信号的现代法频谱分析，分析了自相关法、Burg法、协方差法和改进的协方差法对功率谱的影响以及阶数、信噪比、窗长度对自相关法频谱分析的影响。(The influence of autocorrelation method, Burg method, covariance method and improved covariance method on power spectrum and the influence of order, signal-to-noise ratio and window length on the spectrum analysis of sinusoidal signal in noise are analyzed.)

说明：  融合中心进行SNR比较的协作频谱检测算法仿真程序(SpectrumD etection Based On Central SNR Comparison)

This code is useful for PLD measurement

Most of the algorithms presented in the literature and in this chapter are basically intuitive and are intended to work with ECG signals in accepted clinical conditions, i.e. SNR higher than 18 dB.

运用ode45求解微分方程，并用matlab做出其图形(Use ode45 to solve differential equations, and make its graphics with matlab)