Method and apparatus for forming a dynamic model to locate position of a satellite receiver
AssigneeGlobal Locate, Inc.
InventorsFrank van Diggelen, Charles Abraham
Life of this patent
Estimating the term…
Abstract
Method and apparatus for locating position of a satellite signal receiver is described. In one example, pseudoranges are obtained that estimate the range of a satellite signal receiver to a plurality of satellites. An absolute time and a position are computed using the pseudoranges at a first time. The absolute time is then used to compute another position at a subsequent time. In another example, a plurality of states associated with a satellite signal receiver are estimated, where the plurality of states includes a time tag error state. A dynamic model is then formed relating the plurality of states, the dynamic model operative to compute position of the satellite signal receiver.
Claims10
A method, comprising:
- estimating a plurality of states associated with a satellite signal receiver, the plurality of states including a time tag error state, the time tag error state relating a local time associated with said satellite signal receiver and an absolute time associated with signals from a plurality of satellites;
- and
- forming a dynamic model relating the plurality of states, the dynamic model operative to compute position of the satellite signal receiver.
A mobile device, comprising:
- a satellite signal receiver for providing pseudoranges that estimate the range of the mobile device to a plurality of satellites;
- and
- a sequential estimator having a plurality of states associated with the satellite signal receiver, the plurality of states including a time tag error state, the time tag error state relating a local time associated with said satellite signal receiver and an absolute time associate with signals from the plurality of satellites.
Dependencies are inferred from the claim text.