Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid
Abstract
A method for determining geolocation of a UAV near a power grid includes detecting, via a transceiver, a carrier signal transmitted from a first grid node to identify the node's fixed geolocation. A response signal may be transmitted from a second grid node in response to the carrier signal to identify a fixed geolocation of the second grid node, or the UAV may process the carrier signal. A processor determines time-of-flight of the carrier signal, e.g., using the response signal, and derives the UAV's geolocation using the time-of-flight. Determining time-of-flight may include referencing a lookup table indexed by time-of-arrival at the transceiver of the modulated carrier and response signals. A timestamp may indicate time-of-transmission of the carrier and response signals, respectively. Deriving geolocation may include subtracting time-of-transmission of the response signal from that of the carrier signal. A system includes the processor and transceiver.
- Inventors:
- Issue Date:
- Research Org.:
- National Aeronautic and Space Administration (NASA), Washington, DC (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1823877
- Patent Number(s):
- 10983223
- Application Number:
- 16/045,076
- Assignee:
- United States of America as Represented by the Administrator of NASA (Washington, DC)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B64 - AIRCRAFT B64C - AEROPLANES
G - PHYSICS G01 - MEASURING G01C - MEASURING DISTANCES, LEVELS OR BEARINGS
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 07/25/2018
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Moore, Andrew J., and Dorsey, Scott B. Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid. United States: N. p., 2021.
Web.
Moore, Andrew J., & Dorsey, Scott B. Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid. United States.
Moore, Andrew J., and Dorsey, Scott B. Tue .
"Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid". United States. https://www.osti.gov/servlets/purl/1823877.
@article{osti_1823877,
title = {Method and system for determining a geographical location of an unmanned aerial vehicle flown in proximity to a power grid},
author = {Moore, Andrew J. and Dorsey, Scott B.},
abstractNote = {A method for determining geolocation of a UAV near a power grid includes detecting, via a transceiver, a carrier signal transmitted from a first grid node to identify the node's fixed geolocation. A response signal may be transmitted from a second grid node in response to the carrier signal to identify a fixed geolocation of the second grid node, or the UAV may process the carrier signal. A processor determines time-of-flight of the carrier signal, e.g., using the response signal, and derives the UAV's geolocation using the time-of-flight. Determining time-of-flight may include referencing a lookup table indexed by time-of-arrival at the transceiver of the modulated carrier and response signals. A timestamp may indicate time-of-transmission of the carrier and response signals, respectively. Deriving geolocation may include subtracting time-of-transmission of the response signal from that of the carrier signal. A system includes the processor and transceiver.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {4}
}
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