Fresnel_diffraction

灰色预测模型称为CM模型，G为grey的第一个字母，M为model的第一个字母。GM（1，1）表示一阶的，一个变量的微分方程型预测模型。GM（1，1）是一阶单序列的线性动态模型，主要用于时间序列预测。 一、GM（1，1）建模 设有数列 共有 个观察值 对 作累加生成，得到新的数列 ，其元素 （5-1） 有： 对数列 ，可建立预测模型的白化形式方程， （5-2） 式中： ——为待估计参数。分别称为发展灰数和内生控制灰数。设 为待估计参数向量 则 按最小二乘法求解， 有： （5-3） 式中： （5-4） （5-5） 将（5-3）式求得的 代入（5-2）式，并解微分方程，有 （1，1）预测模型为： （5-6）(gray forecasting model called CM model, the G-gray of a letter, the M model for the first letter. GM (1,1), a band of a variable type of differential equation models. GM (1,1) is a sequence of single-band linear dynamic model, mainly for time series prediction. A GM (1,1) model series with a total value of observation for the cumulative production, to a new series of its elements (5-1) : The series, we can establish the prediction model albino form of equation (5-2) where :-- to question the estimated parameters. The development will be known as the gray and hygiene control within a few gray. Set parameters to be estimated according to Vector least squares method, are : (5-3) where : (5-4) (5-5) (5-3) that obtained in lieu of income (5-2)- and solutions differential equations, (1 1) Fore)

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MATLAB模型：HMIPv6&MIPv6在HOP数增加情况下的额外开销(MATLAB model: HMIPv6 & MIPv6 HOP number increased in case of overhead)

this code is thresholding image with fuzzy c-meam thresholding, it good result than Otsu method.

A Multilevel inverter topology based on spwm.

说明：  自己写的isodata和C均值matlab程序，文件带注释，简单易懂(Wrote it myself isodata and C mean matlab programs, files with comments, easy to understand)

matlab的信噪比处理代码，大家可以使用。(Signal to Noise Ratio)

matlab下的，精通simulink系统仿真与控制，是一本比较好的指导书。(under matlab, simulink mastery and control system simulation is a good guide book.)

关于认知无线电频谱检测中能量检测的程序，并绘制虚警概率和检测概率之间的关系。(On energy detection in cognitive radio spectrum detection method, the relationship between the probability of false alarm and detection probability.)

小孔节流静压气浮轴承的压力模拟，使用差分法计算(Orifice hydrostatic pressure simulation of air bearing, calculated using the difference method)