SYSTEM AND METHOD FOR PROVIDING INFORMATION FROM REFERENCE STATIONS TO ROVER RECEIVERS IN A SATELLITE NAVIGATION SYSTEM

摘要

A navigation satellite system, one or more NSS reference station is set out for providing information to one or more rover receivers. The NSS reference station comprises a processing unit configured to determine one or more first range intervals representing first ambiguity windows based on estimated atmospheric effects, and determine one or more second range intervals representing a second ambiguity window smaller than each of the first ambiguity windows based on uncertainties of range measurements within a predetermined previous period. The NSS reference station further comprises a transmission unit configured to transmit, to the NSS rover receivers, first messages each comprising a modulo a first ambiguity window, and transmission of two first messages, to range measurement transmit between the NSS rover receiver, a plurality of second messages, each second message comprising a range measurement modulo one of the second ambiguity windows.

主权项

1. A navigation satellite system, NSS, reference station for providing information to one or more NSS rover receiver(s), the NSS reference station comprising:
a processing unit configured to
determine one or more first range intervals representing first ambiguity windows based on estimated atmospheric effects, anddetermine one or more second range intervals representing second ambiguity windows smaller than each of the first ambiguity windows based on uncertainties of range measurements within a predetermined previous period; and a transmission unit configured to
transmit, to the NSS rover receiver(s), first messages each comprising a range measurement modulo a first ambiguity window, andtransmit between transmission of two first messages, to the NSS rover receiver(s), a plurality of second messages, each second message comprising a range measurement modulo one of the second ambiguity windows.