General Electric Company

Anatha Krishnan Pradeep

Daniel David Harrison

Glen William Brooksby

Stephen Michael Hladik

Location of an object to be tracked is determined by measuring, at a receiver situated at the object, the propagation time differences between the signals from a plurality of GPS satellites, each of which is received by the receiver situated at the object. The measured propagation time difference values are transmitted to a central station where the location of the object to be tracked is calculated based upon the propagation time differences of the signals transmitted from the satellites and data derived from a receiver apart from the object but also receiving signals from the satellites.

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Berkeley, CA, United States of America

Anatha Krishnan Pradeep