[특허]System, method, and computer program product for indicating hostile fire

Lockheed Martin Corporation

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특허 상세정보

MyON담기

내보내기 페이스북 공유 트위터 공유 카카오톡 공유

System, method, and computer program product for indicating hostile fire

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F41G-007/22 G01J-005/00 G06T-007/20 G01P-005/10
출원번호	US-0709634 (2015-05-12)
등록번호	US-9360370 (2016-06-07)
발명자 / 주소	Moraites, Stephen C. McPhail, Shawn Sobiski, Donald
출원인 / 주소	Lockheed Martin Corporation
대리인 / 주소	Miles & Stockbridge P.C.
인용정보	피인용 횟수 : 10 인용 특허 : 95

초록

Systems, methods, and computer program products for identifying hostile fire. A characteristic of a fired projectile is detected using an optical system and the projectile's travel path in relation to a vehicle is determined. If the determined travel path of the projectile is within a predetermined distance from the vehicle, it is determined that the projectile is hostile towards the vehicle and a warning is output.

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1. A system that is operative during the day and at night to determine whether a position is an intended target of a fired unguided energetic projectile, the system comprising: an infrared (IR) camera mountable at the position, said IR camera having a field of view (FOV) and a predetermined sensitivity sufficient to capture a heat signature of the fired unguided energetic projectile, the heat signature including at least one of a firing component generated upon firing of the projectile and a friction component generated by friction as the projectile travels through the troposphere, pixels of said IR camera being operative to capture a portion of a trail of energy associated with the heat signature of the fired projectile; andan image processor operative to receive signals from said IR camera corresponding to the captured portion of the trail of energy, said image processor being operative to post-process in near real time the signals from said IR camera and to make a determination as to whether the position was the intended target of the fired projectile by analyzing calculated vertical and horizontal miss distances of the fired projectile, the vertical and horizontal miss distances being calculated based on a product of vertical and horizontal pixel trails, respectively, in the captured portion of the trail of energy as functions of time and projectile velocity. 2. The system according to claim 1, comprising an alert system operatively coupled to said image processor to generate timely audible and visible indications that the position is the intended target of the fired projectile based on the determination by said image processor that the position was the intended target of the fired projectile. 3. The system according to claim 1, wherein said IR camera is calibrated so as to set one or more miss distance thresholds indicative of hostile fire based on known velocities or velocity ranges of select known-to-be hostile projectiles and corresponding distance ranges of said projectiles. 4. The system according to claim 1, wherein the position is one of a helicopter, a ship, aircraft, a ground vehicle, a building, and a person. 5. The system according to claim 1, further comprising a countermeasure system mountable at the position that is operative to deploy one of a non-lethal weapon, a soft-kill, and a hard-kill weapon in response to the determination that the position was the intended target of the fired projectile, the weapon being deployed to a determined location or location area associated with the fired projectile, wherein the determined location or location area is determined based on the signals from said IR camera corresponding to the captured portion of the trail of energy. 6. The system according to claim 5, wherein the determined location or location area is determined based on the signals from said IR camera corresponding to the captured portion of the trail of energy and also based on signals from an other IR camera of the system, said other IR camera having a field of view (FOV) and a predetermined sensitivity sufficient to capture a heat signature of the fire unguided energetic projectile from the perspective of said other IR camera, the heat signature from the perspective of said other IR camera including at least one of a firing component generated upon firing of the projectile and a friction component generated by friction as the projectile travels through the troposphere, pixels of said other IR camera being operative to capture a portion of a trail of energy associated with the heat signature of the fired projectile from the perspective of said other IR camera, andwherein the determined location or location area is an origination location or location area of the unguided energetic projectile and said image processor is configured and operative to process signals from said IR camera and signals from said other IR camera to determine a distance to the origination location or location area of the unguided energetic projectile. 7. The system according to claim 1, comprising said IR camera and at least one more of said IR cameras, each of said IR cameras having a FOV, the FOVs combining to form a total FOV for the system. 8. The system according to claim 1, wherein the system is configured and operative to determine whether the projectile will hit, will likely hit, did hit, and/or did likely hit the position. 9. The system according to claim 1, wherein the system is configured to represent the captured portion of the trail of energy as a two-dimensional representation over time, andwherein the functions of time and projectile velocity include a rate of change of the projectile trace and the rate of rate of change of the projectile trace. 10. The system according to claim 1, wherein the miss distances are calculated based further on electronically stored data for one or more projectile types. 11. The system according to claim 10, wherein the electronically stored projectile type data includes, for each type of projectile, projectile velocity data and projectile distance data. 12. A nontransitory computer readable storage medium having stored thereon software instructions that, when executed by a processor, cause the processor to perform operations comprising: analyze received electronic data regarding a sensed heat signature of an unguided projectile; anddetermining a miss distance of the unguided projectile based on the analyzed received electronic data, the miss distance being at least one of a vertical miss distance and a horizontal miss distance. 13. The nontransitory computer readable storage medium according to claim 12, wherein the received electronic data is from an IR camera that captures the sensed heat signature of the unguided projectile, the miss distance being calculated based on a product of the rate of projectile velocity change and the rate of rate of change. 14. The nontransitory computer readable storage medium according to claim 12, wherein the stored software instructions, when executed by the processor, cause the processor to perform operations comprising: responsive to the determined miss distance of the unguided projectile, identify whether or not the unguided projectile is hostile or friendly; andin the case of a hostile identification, output an indication that the unguided projectile is hostile. 15. The nontransitory computer readable storage medium according to claim 12, wherein the heat signature is sensed by electronically detecting infrared radiation of the projectile in a field of view (FOV); andwherein the determining the miss distance is further based on electronically stored data for one or more projectile types. 16. The nontransitory computer readable storage medium according to claim 15, wherein the electronically stored projectile type data includes, for each type of projectile, projectile velocity data and projectile distance data.

이 특허에 인용된 특허 (95)

이 특허를 인용한 특허 피인용횟수: 10

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특허 상세정보

System, method, and computer program product for indicating hostile fire

초록

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이 특허에 인용된 특허 (95)

이 특허를 인용한 특허 피인용횟수: 10

IPC 상위 출원인

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특허 상세정보

System, method, and computer program product for indicating hostile fire

초록

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이 특허에 인용된 특허 (95)

이 특허를 인용한 특허 피인용횟수: 10

IPC 상위 출원인

과제정보

상세정보조회

원문조회

IPC 상세정보(version : 201201)

연구과제 성과물(0)

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