| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method and device for using GNSS satellite trajectory extension information.SOLUTION: A device for using GNSS satellite trajectory extension information comprises: an interface for acquiring at least one satellite navigation message of a satellite (S921); and a microprocessor for determining a propagating condition on the basis of the obtained satellite navigation message (S923), estimating a plurality of parameters of a satellite trajectory prediction model on the basis of the propagating condition (S925) to establish the estimated satellite trajectory prediction model, propagating a set of satellite trajectory extension information by using the estimated satellite trajectory prediction model (S927), calculating acquisition assistance information on the basis of the set of satellite trajectory extension information (S950), and acquiring signals from the satellite by using the acquisition assistance information (S970).</p> |
