Precise kinematic gps surveying can provide users with the precise position , velocity , attitude and time information of the moving platform in real - time or post - processing modes . it is now increasingly used for many surveying and navigation applications on land , at sea or in the air 精密gps動態測量能實時或事后地給用戶提供高精度的位置、速度、加速度、姿態和時間信息,它在陸地、海面或航空中的導航和測量應用越來越廣泛。