Systems and methods for identifying and sharing airborne radar spectrum

Patent metadata

Field	Value
Publication number	US-12250560-B2
Application number	US-202117191618-A
Country	US
Kind code	B2
Filing date	Mar 3, 2021
Priority date	Mar 3, 2020
Publication date	Mar 11, 2025
Grant date	Mar 11, 2025

Abstract

Systems and methods for identifying shareable airborne radar spectrum are disclosed. The system may include an Airborne Radar Sensing Capability (AR-SC) system that performs a method including: receiving, from a sensor, information indicative of an active airborne radar, the information comprising at least: an identification of the sensor; determining one or more frequencies affected by the active airborne radar; and determining whether the active airborne radar is associated with a specific aircraft; if the active airborne radar is associated with a specific aircraft: determining a location of the aircraft; and reporting, to a spectrum controller, (i) the one or more affected frequencies, and (ii) the location of the aircraft; if the active airborne radar is not associated with a specific aircraft: reporting, to a spectrum controller, the one or more affected frequencies.

First claim

What is claimed is:

1. A method for identifying shareable airborne radar spectrum, comprising:
receiving, from one or more sensors, information indicative of an active airborne radar;
determining, based on a machine learning algorithm, a type of the active airborne radar based on characteristics associated with a type of radar;
receiving, from one or more receivers, information indicative of a platform of the active airborne radar;
determining one or more frequencies affected by the active airborne radar;
determining, based on the information indicative of the platform of the active airborne radar, a location associated with the one or more affected frequencies, wherein the information indicative of the platform of the active airborne radar comprises at least one of a velocity or a direction associated with an aircraft;
associating the location associated with the one or more frequencies as a moveable geo-fence, wherein the moveable geofence is a sphere centered on the aircraft; and
reporting, to a spectrum controller, (i) the one or more affected frequencies, and (ii) the location.

2. The method of claim 1 , wherein the information indicative of the platform of the active airborne radar further comprises:
a location associated with an aircraft.

3. The method of claim 1 , wherein determining the location associated with the one or more affected frequencies comprises:
using at least one of the position, velocity, or direction to calculate a future location associated with the one or more affected frequencies.

4. The method of claim 1 , wherein determining the location associated with the one or more affected frequencies includes correlating, by an automated learning method, an association of the information indicative of the active airborne radar and the information indicative of the platform of the active airborne radar.

5. The method of claim 4 , wherein the automated learning method comprises successive filtering across one or more observed events.

6. The method of claim 4 , wherein the automated learning method comprises machine learning.

7. The method of claim 4 , wherein the automated learning method comprises a pattern of life analysis.

8. The method of claim 1 , wherein determining the location associated with the one or more affected frequencies includes receiving, from a government agency, the location.

9. The method of claim 1 , wherein determining the location associated with the one or more affected frequencies includes estimating a future motion of an aircraft.

10. The method of claim 9 , wherein estimating the future motion includes calculating the future motion based on the information indicative of the platform of the active airborne radar.

11. The method of claim 9 , wherein estimating the future motion includes predicting the future motion from one or more previous motions associated with the aircraft.

12. The method of claim 11 further comprising:
storing the one or more previous motions associated with the aircraft in a database.

13. The method of claim 1 , wherein the one or more sensors are configured have overlapping coverage regions.

14. The method of claim 1 , wherein the sensor is an RF sensor.

15. The method of claim 14 , wherein the RF sensor includes at least one of: (i) a pulse filter, and (ii) a chirp filter.

16. The method of claim 1 , wherein the information indicative of the platform of the active airborne radar is Automatic Dependent Surveillance-Broadcast (ADS-B) data.

17. The method of claim 1 , wherein determining the location associated with the one or more affected frequencies comprises:
receiving information from an Automatic Dependent Surveillance-Broadcast (ADS-B) aircraft transponder;
determining the location of the aircraft based on the ADS-B information; and
determining the location associated with the one or more affected frequencies based on the location of the aircraft.

18. A method for identifying shareable airborne radar spectrum, comprising:
receiving, from a sensor, information indicative of an active airborne radar, the information comprising at least:
an identification of the sensor;
determining one or more frequencies affected by the active airborne radar;
determining, based on a machine learning algorithm, a type of the active airborne radar based on characteristics associated with a type of radar; and
determining whether the active airborne radar is associated with a specific aircraft, wherein the information indicative of the platform of the active airborne radar further comprises at least one of a velocity or a direction associated with the specific aircraft;
associating a location associated with the one or more frequencies as a moveable geo-fence, wherein the moveable geofence is a sphere centered on the aircraft;
if the active airborne radar is associated with a specific aircraft:
determining a location of the aircraft; and
reporting, to a spectrum controller, (i) the one or more affected frequencies, and (ii) the location of the aircraft;
if the active airborne radar is not associated with a specific aircraft:
reporting, to a spectrum controller, the one or more affected frequencies.

19. The method of claim 18 , wherein the sensor is an RF sensor.

20. The method of claim 19 , wherein the RF sensor is configured to sense RF signals having a frequency between 3.1 GHZ and 4.2 GHz.

21. The method of claim 19 , wherein the RF sensor includes at least one of: (i) a pulse filter, and (ii) a chirp filter.

22. The method of claim 18 , wherein the identification of the sensor includes at least one of:
(i) a location of the sensor, or
(ii) a sensor identifier.

23. The method of claim 18 , wherein the information indicative of an active airborne radar includes an identification of at least one of;
(i) a type of the active airborne radar,
(ii) one or more frequencies used by the active airborne radar,
(iii) one or more frequency bands used by the active airborne radar,
(iv) a type of aircraft, or
(v) a specific aircraft.

24. The method of claim 18 , wherein determining one or more frequencies affected by the active airborne radar comprises:
receiving an identification of a type of the active airborne radar; and
determining the one or more affected frequencies affected by the identified type of the active airborne radar.

25. The method of claim 18 , wherein determining one or more frequencies affected by the active airborne radar comprises:
receiving an identification of one or more frequencies used by the active airborne radar; and
determining the one or more affected frequencies based on the one or more identified frequencies used by the active airborne radar.

26. The method of claim 18 , wherein determining one or more frequencies affected by the active airborne radar comprises:
receiving an identification of one or more frequency bands used by the active airborne radar; and
determining the one or more affected frequencies based on the one or more identified frequency bands.

27. The method of claim 18 , wherein determining one or more frequencies affected by the active airborne radar comprises:
receiving an identification of a type of aircraft; and
determining the one or more affected frequencies based on the identified type of aircraft.

28. The method of claim 18 , wherein determining one or more frequencies affected by the active airbor

Assignees

• Federated Wireless Inc

Inventors

• Neel James
• Schaubach Kurt

Classifications

• H04W4/021 Primary

  Services related to particular areas, e.g. point of interest [POI] services, venue services or geofences · CPC title

• H04W16/14 Primary

  Spectrum sharing arrangements {between different networks} · CPC title