中文说明：kalman滤波器是一种由状态预测系统、利用观测结果校正状态预测系统两大部分构成的状态跟踪滤波器。本例程处理的是篮球从高处落下的过程中，篮球的位置的预测问题，对于kalman滤波器用以运动状态预测是个很好的Demos
English Description：
Kalman filter is a forecasting system, use the observations by the State correction state forecasting system of two major state tracking filter. The routine processing of the basketball falls from a height, basketball position prediction problem, Kalman filter for motion prediction is a very good Demos