Random antenna array interferometer for radio location

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6985107
APP PUB NO 20050007278A1
SERIAL NO

10615964

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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This invention relates to a method and system for the radio location of CDMA and non-CDMA enabled transmitters within a reception zone. The invention exploits the superposition of antenna patterns that create complex and asymmetrical interference structures at very small scales. By randomly distributing a random antenna array of M elements across a two or three-dimensional surface, fine scale interference structures on the scale of ¼ the carrier wavelength are generated. Once the minimum number of antennas are placed, additional antennas will not improve the resolution. Such interference structures when sampled at ⅛ the carrier wavelength or greater yields unique spatial patterns with respect to a given antenna array geometry and transmitter location. The invention incorporates signature recognition (matching) and orthogonal sub-space projection estimators to derive location estimates of a radio transmitter.

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Patent Owner(s)

Patent OwnerAddress
LOTEK WIRELESS INC115 PONY DRIVE NEWMARKET ONTARIO L3Y 7B5

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Anson, Peter Aurora, CA 1 156
Niezgoda, George Toronto, CA 1 156

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