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US 12,619,255 B1Granted
Self-protecting radio frequency (RF) seekers
AssigneeArchaius Inc.
InventorsFrederick Vosburgh, Kristopher McGuire, Lee B. Baker
Life of this patent
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Abstract
Seeker devices and methods of navigation are disclosed. Devices comprise a self-protecting direction finder that can determine direction to a source of RF interference, cancel the interference, and provide direction signals and desirably received signals to the flight controller, which guides navigation with respect to the jammer.
Claims19
A seeking device for navigating a vehicle comprising a direction finder connected to a flight controller,
- the direction finder comprising a combiner connected to at least a first antenna via a first signal path and to a second antenna via a second signal path, the combiner being further connected to a direction finder controller, the flight controller and/or an RF receiver, and
- the flight controller being any type that can control navigation of the vehicle in response to direction finding signals and/or signals from the RF receiver,
- wherein an output of the combiner includes a power detector;
- wherein the direction finder is operable to adjust at least one parameter of the first signal path and/or the second signal path based on an output of the power detector;
- wherein the direction finder controller is operable to determine a direction to a jammer and provide the direction finding signals by processing signals from the combiner;
- and
- wherein the flight controller is operable to control navigation of the vehicle in response to the direction finding signals when the signals from the RF receiver are degraded or disrupted.
4 more elements
A method for navigating a vehicle comprising the steps of providing a direction finder connected to a flight controller;
- the direction finder comprising a combiner connected to a first antenna via a first signal path and to a second antenna via a second signal path, the combiner being further connected to a direction finder controller and/or an RF receiver;
- determining a direction to a jammer and providing direction finding signals using the direction finder controller by processing signals from the combiner;
- controlling navigation of the vehicle using the flight controller in response to the direction finding signals and/or signals from the RF receiver;
- controlling navigation of the vehicle using the flight controller in response to the direction finding signals when the signals from the RF receiver are disrupted;
- and
- controlling navigation of the vehicle using the flight controller in response to the direction finding signals when a signal-to-noise ratio (SNR) of the signals from the RF receiver fall below a threshold.
3 more elements
A vehicle, comprising:
- a seeking device comprising a direction finder comprising a combiner connected to a first antenna via a first signal path and to a second antenna via a second signal path, the combiner being further connected to a direction finder controller and/or an RF receiver, and
- a flight controller being any type that can control navigation of the vehicle in response to direction finding signals and/or signals from the RF receiver;
- wherein the direction finder controller is operable to determine a direction to a jammer and provide the direction finding signals by processing signals from the combiner;
- wherein the direction finder controller is operable to determine a location of the jammer by determining a plurality of directions to the jammer;
- and
- wherein the flight controller is operable to control navigation of the vehicle in response to the direction finding signals when the signals from the RF receiver are disrupted.
3 more elements
A vehicle, comprising:
- a seeking device comprising a direction finder comprising a combiner connected to a first antenna via a first signal path and to a second antenna via a second signal path, the combiner being further connected to a direction finder controller and/or an RF receiver, and
- a flight controller being any type that can control navigation of the vehicle in response to direction finding signals and/or signals from the RF receiver;
- wherein the direction finder is operable to adjust a relative time of arrival of a first signal of the first signal path relative to a second signal of the second signal path to change an instantaneous bandwidth (IBW) of cancellation to a bandwidth of an RF signal;
- wherein the direction finder controller is operable to determine a direction to a jammer and provide the direction finding signals by processing signals from the combiner;
- and
- wherein the flight controller is operable to control navigation of the vehicle in response to the direction finding signals when the signals from the RF receiver are disrupted.
3 more elements
Dependencies are inferred from the claim text.