机载空间激光通信终端的参数辨识跟踪方法研究-论文.pdf

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1、光电子·馓第25卷第9期2014年9月JournalofOptoelectronics·LaserVo1．25No．9September2014机载空间激光通信终端的参数辨识跟踪方法研究曹阳(1．重庆理工大学电子信息与自动化学院，重庆400054；2．电子科技大学物理电子学院，四川成都610054)摘要：针对机载空间激光通信终端的机动形式多样性，建立了机载激光通信终端运动模态，应用改进的递归最小二乘法实现观测数据加权，将参数辨识方法和卡尔曼模型结合，动态调整卡尔曼模型中的状态转移矩阵，实现对机载激光通信终端的机动跟踪。构建机载空间激光通信

2、的跟踪实验平台，模拟机载激光通信终端多种运动模式的实验表明，本文的参数辨识卡尔曼算法具有跟踪精度高和响应时间短，且具备多种动动模式的跟踪适应能力。关键词：机载空间激光通信；参数辨识；跟踪；卡尔曼滤波中图分类号：TP273文献标识码：A文章编号：1005-0O86(2O14)o9—1695一O6Researchofparameteridentificationtrackingalgorithmforair。bornelasercommunicationCAOYang’(1．SchoolofElectronicInformation＆Auto

3、mation，ChongqingUniversityofTechnology，Chongqing400054，Chi—na；2．SchoolofPhysicalElectronics，UniversityofElectronicScienceandTechnologyofChina，Chengdu610054，China)Abstract：Airborne1asercommunicationhasbecomethemain、Ⅳayof1argecapacityspacecommunicationforthefuture，andreal-t

4、imehigh-precisiontrackingsystemofairbornelasercommunicationplatformhasbeenalreadyoneofthemostdifficultproblems．Inordertoresolvethediversityofmaneuveringformsforairborneplatform，itisimpossibletodescribethemaneuveringformswithfixedmodels．Inthecon—tinuoustimedomain，three-ord

5、erlineardifferentialequationmaybeappliedtodescribetheairbornelasertermina1motionmodelwithdiferentparametervalues，whichcancoverawidevarietyofmotionmodes．Itistheimportantsteptoidentifytheparametervaluesaccordingtothemotionmodes，theimprovedre—cursiveleastsquaremethodisadopte

6、dtoidentifyparameter，itcanresolveobserveddatasaturationandestimatedivergence，theparameteridentificationandKalmanfilterarecombinedtodecidethestatetran—sitionmatrix．whichmayincludeavarietyofmotionstatesforairborne1asercommunicationplatforminKalmanmode1．Novelmethodthatadopts

7、laserbeamtOsimulatemaneuveringisproposedwhichcane{一fectivelysimulatethemaneuveringforms．TheexperimentalresultsshowthattheKalmanfilterbasedontheparameteridentificationhasadvantagesofhightrackingprecision，shortresponsetimeandgoodtrackingabilitywithdifferentialmodels．Keyword

8、s：airbornelasercommunication；parameteridentification；tracking；Kalmanfilter激光通信建立激光通信之前先要完成目标的捕1引