fresnel-and-convolution

The Kalman filter is an efficient recursive filter that estimates the state of a linear dynamic system from a series of noisy measurements. It is used in a wide range of engineering applications from radar to computer vision, and is an important topic in control theory and control systems engineering. Together with the linear-quadratic regulator (LQR), the Kalman filter solves the linear-quadratic-Gaussian control problem (LQG). The Kalman filter, the linear-quadratic regulator and the linear-quadratic-Gaussian controller are solutions to what probably are the most fundamental problems in control theory.

GM(1,1)灰色预测的matlab的.m文件，可以直接使用。(GM (1,1) in matlab forecasts gray. M files can be used directly.)

voice recognition with neural networks backpropagation. this source can recognize number one two three four five six seven eight nine

XXY 平台移動計算,利用三點位置算出中心進行偏移動作(XXY mobile computing platform using three shift operation center position calculating)

说明：  本程序为实验性程序，验证了平面上到多点距离之和等于定长的点的轨迹，是未加权的无线传感器网络的仿真原型程序，并附实验报告。(This procedure for the experimental procedures, to verify the plane to multi-point distance and the point equivalent to fixed-length track is unweighted wireless sensor network prototype simulation program, together with the experimental report.)

微分方程的求解代码，包括单微风方程，微分方程组。(Differential equation code, including the single breeze equation, differential equations.)

说明：  求解分岔问题，非常适合于求解非线性振动问题(Solving bifurcation problems)

FDTD三维场的叠加画图显示，很不错的程序。希望对大家有用!(Superposition of three-dimensional field FDTD drawing shows a very good program. Hope it useful!)

单自由度系统对初始条件和简谐激励相应 由单自由度的运动方程和初始条件得到二阶非齐次常微分方程，它的解有对应的齐次方程的通解和非齐次方程的特接构成。(Single degree of freedom system to initial conditions and the corresponding harmonic excitation Special general solution of the equations of motion and initial conditions by a single degree of freedom to get the second order non-homogeneous ordinary differential equations, its solution has a corresponding homogeneous equation and non-homogeneous equation then constituted.)

一个关于TDOA的代码，编程语言为matlab(One on TDOA code, the programming language for matlab)