Track model constraint for GPS position
First Claim
1. A method for constraining GPS derived position information for an object, comprising the steps of:
- accessing a model of one or more navigation surfaces, said object travels in relation to said one or more navigation surfaces, said model includes a set of two or more model surfaces; and
using said model to constrain a GPS based determination of a position of said object.
11 Assignments
0 Petitions
Accused Products
Abstract
A track model is created for use with a GPS receiver. In one embodiment, the track model is a set of planar surfaces which approximate the contiguous surface on which navigation takes place. The GPS receiver searches for an appropriate planar surface associated with its approximate position. Having found the appropriate planar surface, the GPS receiver constrains its position using the planar surface associated with its approximate position. Using the track model improves the accuracy of the computed position at the time and improves the ambiguity estimation process so that positions with greatly improved accuracy are available sooner.
15 Citations
54 Claims
-
1. A method for constraining GPS derived position information for an object, comprising the steps of:
-
accessing a model of one or more navigation surfaces, said object travels in relation to said one or more navigation surfaces, said model includes a set of two or more model surfaces; and
using said model to constrain a GPS based determination of a position of said object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49)
-
-
26. One or more processor readable storage devices for storing processor readable code, said processor readable code for programming one or more processors to perform a method for constraining GPS derived position information for an object, the method comprising the steps of:
-
accessing a model of one or more navigation surfaces, said object travels in relation to said one or more navigation surfaces, said model includes a set of two or more model surfaces; and
using said model to constrain a GPS based determination of a position of said object.
-
-
37. An apparatus capable of constraining GPS derived position information for an object, comprising:
-
one or more inputs, said one or more inputs receive GPS data; and
one or more processing units, said one or more processing units access a model of one or more navigation surfaces and use said model to constrain a GPS based determination of a position of said object, said object travels on said one or more surfaces, said model includes two or more model surfaces.
-
-
50. A method for constraining GPS derived position information for an object, comprising the steps of:
-
accessing a model of height information;
constraining the derived height by accessing said model of height information, said height information is accessed from said model based on horizontal position information, computed based on GPS. - View Dependent Claims (51, 52, 53, 54)
-
Specification