Device for the selective detection of objects
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0378514
(1989-02-28)
|
우선권정보 |
SE-0002247 (1987-05-29) |
국제출원번호 |
PCT/SE88/00291
|
§371/§102 date |
19890228
(19890228)
|
국제공개번호 |
WO-8809513
(1988-12-01)
|
발명자
/ 주소 |
- Lundin Jan-Erik (Vstra Frlunda SEX)
|
출원인 / 주소 |
- Saab Missiles Aktiebolag (SEX 03)
|
인용정보 |
피인용 횟수 :
6 인용 특허 :
6 |
초록
▼
A device for the selective detection of objects, such as aircraft, missiles, helicopters and the like, by detecting outgoing rays emitted from the objects, preferably infrared rays, comprises at least one sensor unit with two optical entrances arranged at a distance relative to each other across a s
A device for the selective detection of objects, such as aircraft, missiles, helicopters and the like, by detecting outgoing rays emitted from the objects, preferably infrared rays, comprises at least one sensor unit with two optical entrances arranged at a distance relative to each other across a sight line from the device to the object. The sensor unit includes at least one focusing arrangement for focusing the rays onto a focal plane. The sensor unit includes at least one radiation sensitive detector element arranged to emit signals corresponding to the amount of radiation. The device is arranged to variably scan an angular field in azimuth and/or elevation. The device further includes an evaluation unit arranged to receive the signals. The evaluation unit is arranged to select objects which seem to be of similar size with respect to the angle measured from the position of the device, on the one hand large objects being at a long distance, such as aircraft, and on the other hand small objects being at a short distance, such as birds, by suppressing signals whose amplitude is a function of the scanned azimuth or elevation angle showing a relatively large size compared with signals showing a relatively small size.
대표청구항
▼
A device for the selective detection of objects such as aircraft, missiles, helicopters and the like, by means of detecting outgoing rays from the objects, comprising at least one sensor unit (1) including at least one focusing means (15) arranged to focus said rays on at least one corresponding foc
A device for the selective detection of objects such as aircraft, missiles, helicopters and the like, by means of detecting outgoing rays from the objects, comprising at least one sensor unit (1) including at least one focusing means (15) arranged to focus said rays on at least one corresponding focal plane, said sensor unit including at least one radiation-sensitive detector element (16) which is positioned in said focal plane, said detector element arranged to emit signals corresponding to a level of radiation of the incoming rays, said device arranged to variably scan an angular field in azimuth and/or elevation, said device further comprising an evaluation unit means (2), arranged to receive said signals, for selecting objects which seem to be of similar size with respect to the angle measured from the position of the device, such objects being large objects at a long distance such as aircraft, and small objects at a short distance, such as birds, by suppressing signals whose amplitude as a function of the scanned azimuth or elevation angle shows a relatively large size compared with signals that show at relatively small size.
이 특허에 인용된 특허 (6)
-
Carson John C. (Corona del Mar CA), Combined staring and scanning photodetector sensing system having both temporal and spatial filtering.
-
Nutton Martin G. (Billericay GB2), Head of display arrangements.
-
Pentecost Eugene E. (Anaheim CA), Integrated automatic ranging device for optical instruments.
-
Alm Ake W. (Rancho Palos Verdes CA), Radiation imaging enhancement.
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Asano Noriyuki (Kawasaki JPX) Niwa Yukichi (Yokohama JPX) Owada Mitsutoshi (Yokohama JPX) Yamagata Takaaki (Yokohama JPX) Tsuda Shin (Kawagoe JPX), Range detecting method and apparatus.
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Carreras Richard A. (Albuquerque NM) Cusumano Salvatore J. (Champaign IL) Jenks Morton B. (Corrales NM) Suizu Robert I. (Albuquerque NM), Synthetic aperture multi-telescope tracker apparatus.
이 특허를 인용한 특허 (6)
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Horsley Peter,GBX ITX NE15 7NR, Laser rangefinder.
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Cornil, Yan, Telemetry equipment for the two-dimensional or three-dimensional mapping of a volume.
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Micko,Eric Scott, Temperature detecting system and method.
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Yoshiike Nobuyuki (Ikoma JPX) Arita Koji (Osaka JPX) Morinaka Katsuya (Hirakatashi JPX), Temperature distribution measurement apparatus.
-
Morinaka Katsuya,JPX ; Yoshiike Nobuyuki,JPX ; Hashimoto Kazuhiko,JPX ; Kawai Tetsuya,JPX, Thermal object measuring apparatus.
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Morinaka Katsuya,JPX ; Yoshiike Nobuyuki,JPX ; Hashimoto Kazuhiko,JPX ; Kawai Tetsuya,JPX, Thermal object measuring apparatus.
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