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1、第33卷第5期2014年9月飛行器測控學報JournalofSpacecraftTT&CTechnologyV01.33No.5Sep.2014引用格式:吳宇昊,吳京,王雪瑩,等.基于匯聚點觀測的天基光學監(jiān)視星座設計EJ3.飛行器測控學報,2014,33(5):410—415.WuYuhao,WuJing,WangXueying,eta1.Designofaspace-basedopticalsurveillanceconstellationbasedonobservationofpinchpointregions[J].JournalofSpacecraftTT8LCTechn
2、ology,2014,33(5):410—415.基于匯聚點觀測的天基光學監(jiān)視星座設計。吳宇昊,吳京,王雪瑩,盛衛(wèi)東(國防科技大學電子科學與工程學院·長沙·410073)摘要:針對地球靜止軌道目標監(jiān)視問題,提出了一種基于匯聚點觀測的天基光學監(jiān)視星座設計方法。研究分析了地球靜止軌道目標分布特性,針對靜止軌道目標在特定位置分布密度較大的特點,設計了監(jiān)視星座對匯聚點區(qū)域進行重點觀測的策略。分析了監(jiān)視星座的軌道類型和傳感器觀測策略,提出采用太陽同步軌道設計監(jiān)視星座和相應的匯聚點區(qū)域觀測的方法。在滿足對匯聚點觀測要求及同步帶重訪周期為1d的條件下,對星座進行了設計。仿真結果表明:設計的4顆
3、衛(wèi)星組成的觀測星座,對同步帶目標的重訪周期小于1d,24h內的平均觀測時間約為900S,且能觀測到更多的同步帶目標。該方法可供工程應用參考。關鍵詞:地球靜止軌道;匯聚點;天基光學監(jiān)視星座;空間目標監(jiān)視中圖分類號:V447文獻標志碼:A文章編號:1674—5620(2014)05—0410—06DOI:10.7642/j.issn.1674—5620.2014—05—0410—06DesignofaSpace—BasedOpticalSurveillanceConstellationBasedonObservationofPinchPointRegionsWUYuhao,WUJin
4、g,WANGXueying,SHENGWeidong(CollegeofElectronicScienceandEngineering,NationalUniversityofDefenseTechnology.Changsha410073)Abstract:ThispaperpresentsamethodtOdesignaspace-basedopticalsurveillanceconstellationbasedonpinchpointobservationtOmeetsurveillancerequirementsofGEO(GeostationaryEarthOrbit
5、)objects.AsstudyofthedistributionofGEOobjectsfindsthatobjectshaveahigherintensityatspecificpositions,astrategyfocusingonob—servationofpinchpointregionsisdesignedforthesurveillanceconstellation.Followinganalysisoftheorbittypeofthesurveillanceconstellationandsensorobservationstrategy,asunsynchr
6、onousorbitisproposedfordesignoftheconstellationtogetherwithacorrespondingpinchpointregionobservationmethod.TheconstellationisdesignedtOfitintoconstraintsofpinchpointsurveillanceandone-dayrevisittimeoftheGEObelt.Theresultofsimulationin—dicatesthattherevisittimeofGEOobjectsbythefour-satellitesu
7、rveillanceconstellationdesignedinthispaperislessthanonedayandtheaverageobservationtimeisabout900S.Moreover,theconstellationcanobservemoreob—jectsintheGE0belt.Keywords:geostationaryorbit;pinchpoints;space-basedopticalsurveillanceconstellation;