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说明：  一个casio dt 900 源代码，仅供参考！(A casio dt 900 source code for reference purposes only!)

Matlab functions implementing non-parametric local linear smoothing (LLS) for one-dimensional curve fitting: yi = f(xi) + ei for i = 1, 2, ..., n. The toolbox contains: (i) the usual LLS estimator, see e.g. [1] (ii) a jump-preserving (two-sided) LLS estimator proposed in [2] (iii) a modified version of the two-sided LLS proposed in [3].(Matlab functions implementing non-parametric local linear smoothing (LLS) for one-dimensional curve fitting: yi = f(xi)+ ei for i = 1, 2, ..., n. The toolbox contains: (i) the usual LLS estimator, see e.g. [1] (ii) a jump-preserving (two-sided) LLS estimator proposed in [2] (iii) a modified version of the two-sided LLS proposed in [3].)

本程序采用的是基于matlab的PQ分解法潮流计算，程序主要分为三个部分：第一部分用于生成系统的节点导纳矩阵。第二部分主要进行潮流系统的迭代运算。第三部分主要用于对程序最后输出结果的计算，如电压的幅值，相角，功率分布等。(This procedure is used in matlab the PQ decomposition method based on flow calculation, the program is divided into three parts: The first part of the node admittance matrix used to generate the system. The second part of the iteration trend system. The third part is mainly used for the calculation of the final output of the program, such as the amplitude of the voltage, phase angle, power distribution.)

样本熵,MATLAB 模糊熵,MATLAB 近似熵,MATLAB(Entropy is a measure of complexity. It quantifies the unpredictability of fluctuations in a time series.)

FSK调制解调程序，中频是15Mhz的，一个码元采样点250个(FSK modulation and demodulation process, 15Mhz IF yes, a symbol 250 sampling points)

白噪声序列产生maltab源代码，研究白噪声的功率谱密度(The white noise sequence generated maltab source code, research white noise power spectral density)

流形学习中的非线性降维方法——等距映射(ISOMAP)算法的MATLAB实现，可以实现高维数据的降维处理，寻找到原始高维数据的特征维数。(ISOMAP is a method which can deal with the high dismensional data and find the low type of orignal data!)

用matlab编写的一维两相渗流数值模拟程序，采用隐压显饱法求解含水饱和度和压力，适合油藏数模编程初学者！(Using matlab to prepare a one-dimensional two-phase flow simulation program, the use of implicit pressure explicit saturation method for solving water saturation and pressure reservoir for the D programming for beginners!)

matlab code for defocousing an image

频谱的比值校正，汉宁、矩形、海明窗的具体算法，原理等，比较详细的分析程序(spectrum correction)