When still object detection is a less requirement, configure this parameter to a higher value to increase background learning speed to prevent scene-change induced error rates.
若无侦测静止物件的需求，较高的学习速度可减少场景变化所造成的误判。
2
From a numerical simulation on a practical possible mode: uniform acceleration-uniform speed-uniform deceleration we obtain the relationship between the measurement error and the acceleration value.