Methods and devices for estimating the position of an RF source
AssigneeSilvus Technologies, Inc.
InventorsMansour Rachid, Matthew Hayes, Hakan Akan
Life of this patent
Estimating the term…
Abstract
A sensor system may be configured to identify a location of a radio frequency (RF) source using an angle of arrival estimation technique. A sensor system may identify a candidate location of an RF source using hyperbola positioning techniques with two or more antennas at a similar geolocation with reference to the RF source. The sensor system may additionally be able to identify a plurality of RF sources using two or more antennas at a similar geolocation.
Claims20
A system for identifying at least one RF source, the system comprising:
- one or more hardware processors, the one or more hardware processors configured to:
- generate a first set of candidate locations for an RF source based at least in part on a cross correlation of signals received at a first antenna and a second antenna of a sensor system, the first antenna and second antenna being in a first orientation, the first antenna positioned adjacent to the second antenna;
- move the first antenna and the second antenna from the first orientation into a second orientation;
- generate a second set of candidate locations for the RF source based at least in part on a cross correlation of received signals at the first antenna and the second antenna of the sensor system, the first antenna and second antenna being in the second orientation;
- estimate a location of the RF source based on an intersection of the first set of candidate locations and the second set of candidate locations.
A system for determining a location of at least one RF source previously unidentified RF source, the system comprising:
- a movable platform;
- a plurality of antennas coupled to the movable platform,
- wherein the plurality of antennas configured to receive signals from a plurality of RF sources in an environment of the movable platform,
- wherein at least one pair of antennas of the plurality of antennas are spaced a distance from each other of less than or equal to one wavelength of a carrier wave of the RF source;
- and
- one or more hardware processors configured to communicate with the plurality of antennas and identify a presence of at least one RF source of the plurality of RF sources based at least in part on a received power associated with the signals and two or more cross correlations of signals received at different pairs of antennas of the plurality of antennas.
Dependencies are inferred from the claim text.