GIL: A TIGHTLY COUPLED GNSS PPP/INS/LIDAR METHOD FOR PRECISE VEHICLE NAVIGATION

Abstract Accurate positioning and navigation play a vital role in vehicle-related applications, such as autonomous driving and precision agriculture.With the rapid development of Global Navigation Satellite Systems (GNSS), Precise Point Positioning (PPP) technique, as a global positioning solution, has been widely applied due to its convenient oper

Bias Tools This paper deals with a levelling machine for a seedling bed of a rice plant, which is a labor saving device in agricultural work.In order to make the seedling bed flat, the levelling machine vibrates by rotary motion of an eccentric rotor and presses the ground by the base plate of the machine.It is found that at a specific rotating spe