Thermal and/or optical signature simulating systems and methods of making and using such systems

Patent metadata

Field	Value
Publication number	US-11892379-B2
Application number	US-202117362176-A
Country	US
Kind code	B2
Filing date	Jun 29, 2021
Priority date	Jun 29, 2021
Publication date	Feb 6, 2024
Grant date	Feb 6, 2024

Abstract

Countermeasure simulating structures may include (a) a base and (b) one or more separated combustible tracks fixed to the base's surface. The combustible tracks may include thermite and/or other combustible material. The combustible tracks may be shaped to simulate countermeasure flares deployed by a vehicle (e.g., a jet). The countermeasure simulating structure may be incorporated into a countermeasure simulating system that includes (a) an infrared and/or optical sensing system (e.g., like those included in missiles) and (b) a simulator mount holding the countermeasure simulating structure. Countermeasures may be tested in such systems by: (a) arranging an infrared and/or optical sensing system to receive infrared energy and/or visible light emitted by the countermeasure simulating structure; (b) igniting the combustible material of the combustible track such that combustion of the combustible material moves along the combustible track; and (c) determining whether the infrared and/or optical sensing system tracks infrared energy and/or visible emitted by the combustion.

First claim

We claim:

1. A countermeasure simulating structure, comprising: (a) a base including a first surface; and (b) a plurality of separated combustible tracks fixed to the first surface of the base, wherein each combustible track of the plurality of separated combustible tracks includes a combustible material.

2. The countermeasure simulating structure of claim 1 , wherein the combustible material comprises a thermite material.

3. The countermeasure simulating structure of claim 1 , wherein at least one combustible track of the plurality of separated combustible tracks differs from at least one other combustible track of the plurality of separated combustible tracks in at least one of: a combustible material composition, a binder composition, or a concentration of combustible material in the respective track.

4. The countermeasure simulating structure of claim 1 , further comprising one or more ignition sources being structured and arranged to initiate combustion of the plurality of separated combustible tracks simultaneously or at different times.

5. The countermeasure simulating structure of claim 1 , further comprising: a first combustible region fixed to the first surface of the base, wherein the first combustible region combusts to produce a thermal and/or optical signature that differs from thermal and/or optical signatures produced by combustion of the plurality of separated combustible tracks.

6. The countermeasure simulating structure of claim 5 , wherein the plurality of separated combustible tracks are structured and arranged such that combustion of the plurality of separated combustible tracks simulate thermal and/or optical signatures of a plurality of deployed countermeasures, and wherein the first combustible region is structured and arranged such that combustion of the first combustible region simulates a thermal and/or optical signature of a first jet engine.

7. The countermeasure simulating structure of claim 5 , further comprising: a second combustible region fixed to the first surface of the base and separated from the first combustible region, wherein the second combustible region combusts to produce a thermal and/or optical signature that differs from thermal and/or optical signatures produced by combustion of the plurality of separated combustible tracks, wherein: (a) the plurality of separated combustible tracks are structured and arranged such that combustion of the plurality of separated combustible tracks simulate thermal and/or optical signatures of deployed countermeasures, (b) the first combustible region is structured and arranged such that combustion of the first combustible region simulates a thermal and/or optical signature of a first jet engine, and (c) the second combustible region is structured and arranged such that combustion of the second combustible region simulates a thermal and/or optical signature of a second jet engine.

8. The countermeasure simulating structure of claim 1 , wherein the plurality of separated combustible tracks are applied to the first surface of the base as an extruded paste, an aerosol, and/or an ink.

9. A countermeasure simulating system, comprising: (a) an infrared and/or optical sensing system; (b) a simulator mount; and (c) a countermeasure simulating structure engaged with the simulator mount, wherein the countermeasure simulating structure includes: (a) a base including a first surface; and (b) a plurality of separated combustible tracks fixed to the first surface of the base, wherein each combustible track of the plurality of separated combustible tracks includes a combustible material.

10. The countermeasure simulating system of claim 9 , wherein the simulator mount is movable with respect to the infrared and/or optical sensing system.

11. The countermeasure simulating system of claim 9 , wherein the countermeasure simulating structure is suspended from the simulator mount.

12. The countermeasure simulating system of claim 9 , wherein the infrared and/or optical sensing system includes at least one of infrared source tracking components or missile guidance system components.

13. A method of testing a countermeasure system, comprising:
engaging a countermeasure simulating structure with a simulator mount, wherein the countermeasure simulating structure includes: (a) a base having a first surface, and (b) a first combustible track fixed to the first surface, wherein the first combustible track includes a first combustible material;
arranging an infrared and/or optical sensing system in a position to receive infrared energy and/or visible light emitted by the countermeasure simulating structure;
igniting the first combustible material of the first combustible track such that combustion of the first combustible material moves along a first trail defined by the first combustible track; and
determining whether the infrared and/or optical sensing system tracks infrared energy and/or visible emitted by the first combustible track.

14. The method of claim 13 , wherein the countermeasure simulating structure further includes a second combustible track fixed to the first surface and separated from the first combustible track, wherein the second combustible track includes a second combustible material, and wherein the method further includes:
igniting the second combustible material such that combustion of the second combustible material moves along a second trail defined by the second combustible track; and
determining whether the infrared and/or optical sensing system tracks infrared energy and/or visible light emitted by the second combustible track.

15. The method of claim 14 , wherein igniting the first combustible material takes place simultaneous with igniting the second combustible material.

16. The method of claim 14 , wherein the countermeasure simulating structure further includes: (a) a first combustible region fixed to the first surface of the base, wherein the first combustible region produces a thermal and/or optical signature during combustion that differs from a first thermal and/or optical signature produced by combustion of the first combustible track and a second thermal and/or optical signature produced by combustion of the second combustible track and (b) a second combustible region fixed to the first surface of the base, wherein the second combustible region produces a thermal and/or optical signature during combustion that differs from the first thermal and/or optical signature produced by combustion of the first combustible track and the second thermal and/or optical signature produced by combustion of the second combustible track, and wherein the determining steps include determining whether the infrared and/or optical sensing system tracks the first combustible track, the second combustible track, the first combustible region, or the second combustible region.

17. The method of claim 14 , further comprising: printing the second combustible track on the first surface of the base.

18. The method of claim 13 , wherein the countermeasure simulating structure further includes a first combustible region fixed to the first surface of the base, wherein the first combustible region produces a thermal and/or optical signature during combustion that differs from a thermal and/or optical signature produced by combustion of the first combustible track, and wherein the determining step includes determining whether the infrared and/or optical sensing system tracks the first combustible track or the first combustible region.

19. The method of claim 13 , wherein the simulator mount and th

Assignees

• Science Appl Int Corp

Inventors

• Timler John P
• Morris David M

Classifications

• G01M99/00 Primary

  Subject matter not provided for in other groups of this subclass · CPC title

• G01M99/002

  Thermal testing (flaw detection G01N25/72) · CPC title

• F41G7/006

  Guided missiles training or simulation devices · CPC title

• F41J2/02

  Active targets transmitting infrared radiation · CPC title