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atan function using cordic

增广最小二乘的递推算法对应的噪声模型为滑动平均噪声，扩充了参数向量和数据向量H（k）的维数，把噪声模型的辨识同时考虑进去。最小二乘法只能获得过程模型的参数估计，而增广最小二乘法同时又能获得噪声模型的参数估计，若噪声模型为平均滑动模型，，则只能用RELS算法才能获得无偏估计。当数据长度较大时，辨识精度低于极大似然法。(Augmented least squares of recursion algorithm corresponding noise model for moving average noise, expanded parameter vector and data vector H (k) of the dimension, the noise model identification and at the same time into consideration. Least square method can only obtain process model parameter estimation, and augmented least squares method at the same time can obtain noise model parameter estimation, if noise model for the average sliding model,, it can only use RELS algorithm to obtain unbiased estimation. When the data length is bigger, the identification accuracy is lower than maximum likelihood method.)

自己编写的地震资料中地震褶积模型的建立，每一个部分都有标注，很清楚适用于初学者(I have written in the seismic data seismic convolution model, each part has a label, it is clear for beginners)

it is a code for create orl data set for face recognition perpose

说明：  实现数字滤波（刚开始接触不知道分类对不对）请见谅(Digital filter (do not know the beginning of exposure classification is correct or not), please forgive me)

孤岛检测主动式AFD算法模型及其MATLAB实现(Active AFD islanding detection algorithm model and its MATLAB implementation)

运用matlab下的Simulink实现的对Kalman 滤波的仿真，效果很好(The use of MATLAB Simulink to realize the Kalman simulation, the effect is very good)

这是用牛顿法做的，绝对正确无误，请放心下载。(This is done using Newton s method is definitely correct, please rest assured that download.)

说明：  同步电机特性仿真 包括外特性、调整特性和功率特性 本程序仅对功角特性进行仿真(Simulation synchronous motor including external features, adjust the characteristics and power performance characteristics of this procedure only for the simulation of power angle)

枝切法matlab原始代码,内有详细的代码，帮助新手了解相位解缠的算法。(Branch-cut method matlab source code, a detailed code to help the novice to understand the phase unwrapping algorithms.)