卡尔曼滤波算法及C语言实现。其基本思想是：采用信号与噪声的状态空间模型，利用前一时刻地估计值和现时刻的观测值来更新对状态变量的估计，求出现时刻的估计值。它适合于实时处理和计算机运算。-Kalman filter algorithm and C language. The basic idea is: a state-space model of the signal and noise, the first time to estimate the present moment observations to update the estimate of the state variables, find the estimated value of the moment. It is suitable for real time processing and computing.