Patent ID: 6654686
Filing Date: 2003-11-25
Classification: G01S

Abstract:
A navigation satellite receiver system, comprising:a navigation-satellite-receiver reference-station network server for providing various parts of particular time-marked 50-Hz NAV-data transmissions it receives from each of a first constellation orbiting navigation satellites; and a navigation-satellite-receiver network client for providing a user with a position solution based on transmissions it receives from a second constellation orbiting navigation satellites; wherein, the network server estimates a network transmission delay that exists between itself and the network client, and that repeats and modifies said NAV-data transmissions to the network client for its use in a pattern-matching initialization process, and so such arrive with current local GPS time information at the network client; and wherein, the network client is able to synchronize to a GPS NAV-frame without requiring the acquisition of a GPS TLM-word preamble.