System and method for improving the quality of range...

Details System and method for improving the quality of range... System and method for improving the quality of range...

2007-02-27

2007-02-27

Anderson, Matthew (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S067140, C455S067160, C455S506000, C455S515000, C455S115100

Reexamination Certificate

active

11343493

ABSTRACT:
A system and method for applying an algorithm to distance measurements between nodes in an ad-hoc communications network (100). The algorithm is located at an individual node (102, 106, 107) of the ad-hoc network (100) and processes collected data via a multi-path filter to ensure that range measurement data is correct, and if so, include such measurement data in a historical data matrix in which old measurement data is eliminated. During periods where received signals are unable to provide correct distance measurements due to reflections affecting the path between nodes or media absorption or radio energy, distance estimates may be obtained from this accurate historical data.

REFERENCES:
patent: 5381444 (1995-01-01), Tajima
patent: 6487417 (2002-11-01), Rossoni et al.
patent: 2002/0164996 (2002-11-01), Dorenbosch
patent: 2003/0134648 (2003-07-01), Reed et al.
patent: 2003/0232598 (2003-12-01), Aljadeff et al.

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