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1、第31卷增刊飛行器測控學(xué)報voI.31Suppl.!竺!!生!;旦!!Q堅些壘!Q!蘭巳壘竺曼竺!壘塑衛(wèi)魚£!!!塾望Q!壁gY旦!!:!!!!AOS標(biāo)準(zhǔn)在海洋動力環(huán)境探測衛(wèi)星中的應(yīng)用”李寧寧,汪路元,牛躍華,趙思陽《中國空間技術(shù)研究院·北京·100094)摘要:以我國在軌成功運行的首發(fā)海洋動力環(huán)境探測衛(wèi)星為例,描述了在我國遙感衛(wèi)星中首次全面采用AOS(高級在軌系統(tǒng))標(biāo)準(zhǔn)實現(xiàn)整星數(shù)據(jù)流統(tǒng)一動態(tài)管理的數(shù)據(jù)管理方案。該方案采用AOS標(biāo)準(zhǔn)的源包多路復(fù)用機(jī)制實現(xiàn)對衛(wèi)星遙測數(shù)據(jù)的動態(tài)調(diào)度傳輸,提高了信道利用率;采用虛
2、擬信道的動態(tài)調(diào)度機(jī)制在數(shù)傳信道和激光通信信道實現(xiàn)將衛(wèi)星的低速平臺數(shù)據(jù)和高速有效載荷業(yè)務(wù)數(shù)據(jù)進(jìn)行動態(tài)合路傳輸,從而實現(xiàn)整星信息的綜合利用,增強(qiáng)了衛(wèi)星自主管理能力。針對衛(wèi)星在軌應(yīng)用情況,對該方案的優(yōu)點進(jìn)行了總結(jié)。關(guān)鍵詞:AOS(高級在軌系統(tǒng));星上數(shù)據(jù)管理;虛擬信道;合路;遙測;有效載荷中圖分類號:V474.273;TN911文獻(xiàn)標(biāo)志碼:A文章編號:1674—5620(2012)Suppl.一0065一06ApplicationofAOSRecommendationsintheOceanDynamicEnvir
3、onmentMonitoringSatelliteLINingning,WANGLuyuan,NIUYuehua,ZHAOSiyang(ChineseAcademyofSpaceTechnology,Beijing100094)Abstract:TakingChina’SfirstorbitingOceanDynamicEnvironmentalMonitoringSatelliteasanexample,thispaperdescribestheapplicationofAOS(AdvancedOrbit
4、ingSystem)recommendationindatamanagementfeaturingu—nifieddynamicmanagementofdataflowsoftheentireremotesensingsatellite.TelemetrypacketmultiplexingisusedtOrealizetelemetrydatatransmissionandthechannelutilizationratioissignificantlyincreased.Virtualchannelmu
5、ltiplexingisusedtOrealizeuniformtransmissionoflow—-speedplatformdataandhigh—-speedpayloaddatathroughtheradiofrequencydatatransmissionchannelandthelasercommunicationchannel.Asaresultoftheuniformdy—namicdatamanagementproject,integratedsatelliteinformationuti
6、lizationisrealizedandtheon—boardautonomousmanagementfunctionsareenhanced.Theadvantagesoftheuniformdynamicdatamanagementprojectaresumma—rizedbasedonsuccessfuHn-orbitapplications.Keywords:AdvancedOrbitingSystem(AOS);On—BoardDataHandling(OBDH);VirtualChannelD
7、ataUnit(VCDU);multiplexing;Ielemetry;payload0引言CCSDS(空間數(shù)據(jù)系統(tǒng)咨詢委員會)提出的AOS[11(高級在軌系統(tǒng))支持寬帶數(shù)據(jù)傳輸,并提供8種業(yè)務(wù)服務(wù)和3種業(yè)務(wù)質(zhì)量等級,把航天器的業(yè)務(wù)數(shù)據(jù)和平臺數(shù)據(jù)統(tǒng)一為1個數(shù)據(jù)流,改變了傳統(tǒng)分立為2個數(shù)據(jù)流的做法,使系統(tǒng)更有效、更開放。我國自行研制的首發(fā)海洋動力環(huán)境探測衛(wèi)星,用于監(jiān)測和探測海洋動力環(huán)境參數(shù),實現(xiàn)了全天時、全天候?qū)C骘L(fēng)場、高度場、浪場、海洋重力場、大洋環(huán)流和海表溫度場等重要參數(shù)的監(jiān)測,星上裝載微波散射計、雷
8、達(dá)高度計、微波輻射計和校正輻射計等4個主載荷,搭載力學(xué)環(huán)境監(jiān)測器、激光通信試驗有效載荷。衛(wèi)星設(shè)置測控信道、數(shù)傳信道和激光通信試驗信道3個物理信道。星上數(shù)據(jù)管理分系統(tǒng)采用AOS標(biāo)準(zhǔn)在測控信道實現(xiàn)遙測數(shù)據(jù)動態(tài)調(diào)度傳輸功能;在數(shù)傳和激光通信試驗信道均將低速平臺數(shù)據(jù)和相應(yīng)的高速有效載荷數(shù)據(jù)進(jìn)行了合路傳輸,實現(xiàn)整星信息的綜合利用,拓寬了傳統(tǒng)數(shù)管分系統(tǒng)的業(yè)務(wù)領(lǐng)域,增強(qiáng)了衛(wèi)星自主管理能力。*收稿日期:2012一05—30;修回