Spatial position determination system

Details Spatial position determination system Spatial position determination system

2011-04-19

2011-04-19

Pope, Daryl (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular coupling link

C340S539100, C340S539110, C340S539230

Reexamination Certificate

active

07928841

ABSTRACT:
A system is disclosed that determines a spatial position of a tracker device relative to an object sending a return signal to the tracker. Such a system advantageously maintains phase accuracy between a forward signal from the tracker device and the return signal from the object. The system can include, as part of a tracker device, a reference signal generator, a transmitter, a receiver, and a spatial position computer. The reference signal generator is responsive to and phase-stabilized by a broadcast signal, e.g., a signal received from a commercial AM broadcast transmitter. The transmitter and receiver are both coupled to and phase-stabilized by the tracker reference signal generator. Variations and methods with different advantageous features are also described.

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