Distance and velocity measurements using carrier signals

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United States of America Patent

PATENT NO 9271258
APP PUB NO 20150351067A1
SERIAL NO

14293500

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Systems and methods for performing distance and velocity measurements, such as by using carrier signals, are disclosed. A measurement method may include transmitting a first signal from an originator device to a transponder device, the first signal having a first carrier frequency; and determining a carrier phase of the first signal at the transponder device. The method may include transmitting a second signal from the transponder device to the originator device, the second signal having a second carrier frequency; and determining a carrier phase of the second signal at the originator device. The method may include estimating a distance between the originator device and the transponder device using the carrier phase of the first carrier signal and the carrier phase of the second carrier signal. The method may include estimating the distance between the originator device and the transponder device using a frequency difference between the first carrier frequency and the second carrier frequency.

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Patent Owner(s)

Patent OwnerAddress
ENSCO INC3110 FAIRVIEW PARK DRIVE SUITE 300 FALLS CHURCH VA 22042-4501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Farnsworth, Bradley David Alexandria, US 12 194
Kreinar, Edward Joseph Fairfax, US 5 51
Taylor,, Jr David W A Greensboro, US 15 70

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