Method, device and system for determining direction of...

Details Method, device and system for determining direction of... Method, device and system for determining direction of...

2007-06-26

2009-08-25

Phan, Dao L (Department: 3662)

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

C342S174000, C342S442000

Reexamination Certificate

active

07579988

ABSTRACT:
A method, device and system for determining a DOA of a signal are described. Determination of the DOA of the signal may include receiving first and second UWB waveforms of the signal at one or more antennas of a UWB transceiver. A window may be defined in the first and second UWB waveforms such that the window is defined in a leading portion of the signal. First and second amplitude values of the respective first and second UWB waveforms in the window may be calculated. An amplitude ratio may be calculated with the first and second amplitude values and compared with calibration data to determine the DOA of the signal.

REFERENCES:
patent: 4752969 (1988-06-01), Rilling
patent: 5361072 (1994-11-01), Barrick et al.
patent: 6700536 (2004-03-01), Wiegand
patent: 6898235 (2005-05-01), Carlin et al.
patent: 2003/0137454 (2003-07-01), Alexander
patent: 1596217 (2005-11-01), None
patent: 200504866-5 (2005-07-01), None
Samuel M. Sherman, “Monopulse Principles and Techniques,” Artech House, Inc. (1984). (referenced in p. 15 of specification).
A. I. Leonov and K. I. Fomichev“Monopulse Radar,”, Artech House, Inc. (1986). (referenced in p. 15 of specification).

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