fivephase

不同的窗函数，都对应不同的幅值修正系数；针对复制修正中最重要的平顶窗，给出修正的方法。(Different window functions, corresponding to the amplitude correction factor copy the most important amendment of the flat-top windows, give a correction method.)

光纤光栅梳状滤波器相关matlab程序，对通信专业本科毕业论文很有帮助(Fiber grating comb filter correlation matlab procedures, communications professional undergraduate thesis helpful)

（1）在MATLAB环境下编写FFT算法（不调用系统现有函数）； （2）实现对选定图片进行FFT计算、还原（IFFT计算），并与系统FFT函数做对比，进行分析； （3）设计GUI界面。((1) the preparation of the FFT algorithm (do not call the system existing function) in MATLAB environment (2) to achieve the selected image to the FFT calculation, reduction (IFFT computing), and FFT functions to do comparison with the system for analysis (3) Design GUI interface.)

对一组滚动轴承振动信号做分数阶排列熵计算达到诊断的目的。(For a group of vibration signals do Fractional permutation entropy calculation diagnostic purposes.)

this is Illustration of linear least squares.

KALMAN filter for linear time invariant estimation

病态系统求解方法比较：龙格库塔4固定步长、变步长、吉尔法(Pathological system solving methods: Runge-Kutta 4 fixed step size, variable step size, Gill Law)

说明：  function [ret,x0,str,ts,xts]=s1(t,x,u,flag) s1 is the M-file description of the SIMULINK system named s1. The block-diagram can be displayed by typing: s1. SYS=s1(T,X,U,FLAG) returns depending on FLAG certain system values given time point, T, current state vector, X, and input vector, U. FLAG is used to indicate the type of output to be returned in SYS. Setting FLAG=1 causes s1 to return state derivatives, FLAG=2 discrete states, FLAG=3 system outputs and FLAG=4 next sample time. For more information and

This is a useful toolbox to study for SLAM with Matlab.

最小二乘参数系统辨识matlab程序ffffff(Least squares parameter identification procedure)