红外与激光工程
紅外與激光工程
홍외여격광공정
Infrared and Laser Engineering
2015年
10期
3134-3140
,共7页
黄富瑜%沈学举%何永强%周冰
黃富瑜%瀋學舉%何永彊%週冰
황부유%침학거%하영강%주빙
目标探测%超大视场成像系统%典型目标%探测性能
目標探測%超大視場成像繫統%典型目標%探測性能
목표탐측%초대시장성상계통%전형목표%탐측성능
target detection%super-wide FOV imaging system%typical target%detection performance
随着大视场探测技术的发展,超大视场成像系统已被应用于导弹预警、航天器舱外摄像、机载预警等许多领域.探讨了超大视场成像系统的空间应用问题,分析了系统对典型目标的探测能力.结果表明:与小视场红外成像系统相比,超大视场系统空间漏警率大为降低,这使得系统探测盲区更小;超大视场系统的空间分辨力较大,这使得目标像在单个像元上驻留时间更长,有利于目标的提取和检测;但超大视场系统探测灵敏度和探测距离性能相对较差.综合考虑,超大视场成像系统难以适用于远距离目标的探测,但是系统大视场成像的特殊优势使其在近距离全向空间态势感知和强辐射威胁的实时预警方面有很大的应用潜力.
隨著大視場探測技術的髮展,超大視場成像繫統已被應用于導彈預警、航天器艙外攝像、機載預警等許多領域.探討瞭超大視場成像繫統的空間應用問題,分析瞭繫統對典型目標的探測能力.結果錶明:與小視場紅外成像繫統相比,超大視場繫統空間漏警率大為降低,這使得繫統探測盲區更小;超大視場繫統的空間分辨力較大,這使得目標像在單箇像元上駐留時間更長,有利于目標的提取和檢測;但超大視場繫統探測靈敏度和探測距離性能相對較差.綜閤攷慮,超大視場成像繫統難以適用于遠距離目標的探測,但是繫統大視場成像的特殊優勢使其在近距離全嚮空間態勢感知和彊輻射威脅的實時預警方麵有很大的應用潛力.
수착대시장탐측기술적발전,초대시장성상계통이피응용우도탄예경、항천기창외섭상、궤재예경등허다영역.탐토료초대시장성상계통적공간응용문제,분석료계통대전형목표적탐측능력.결과표명:여소시장홍외성상계통상비,초대시장계통공간루경솔대위강저,저사득계통탐측맹구경소;초대시장계통적공간분변력교대,저사득목표상재단개상원상주류시간경장,유리우목표적제취화검측;단초대시장계통탐측령민도화탐측거리성능상대교차.종합고필,초대시장성상계통난이괄용우원거리목표적탐측,단시계통대시장성상적특수우세사기재근거리전향공간태세감지화강복사위협적실시예경방면유흔대적응용잠력.
With the development of wide-field detection technique, the super-wide Field of View (FOV) imaging system has been used in many advanced fields, such as missile pre-warning, extravehicular observation, airborne warning, and so on. The space application of super-wide FOV imaging system was discussed, and the advantages of space application were analyzed. The system detection performance was deduced theoretically and calculated numerically from five aspects. The results show that, compared with the small-field imaging systems, the super-wide FOV system has lower space false dismissal probability, which makes the system have less detection blind zone; the system has larger spatial resolution, which makes the target have a longer imaging time and benefits the target extraction; however, other performances of super-wide FOV system are relatively weaker. Considering all the performances, the super-wide FOV imaging system may not suitable for long-range space target detection, but can be used in omnidirectional Space Situation Awareness (SSA) and real-time threat warning of long-range strong radiation for the host satellite.