卡尔曼滤波算法，主要用于处理从加速度传感器和陀螺仪获得的数据，从而得到一个真实的角度。此算法可以用在四轴飞行器，自平衡小车等方面。-Kalman filtering algorithm, mainly for processing data obtained from the acceleration sensor and the gyro, to obtain a true perspective. This algorithm can be used in four-axis aircraft, since the balance of the car and so on.