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1、第33卷第1期2014年1月飛行器測控學(xué)報(bào)JournalofSpacecraftTT&CTechnologyV01.33No.1Jan.2014引用格式:趙軍,王西京,張華,等.外測數(shù)據(jù)對流層折射誤差修正及精度分析[J].飛行器測控學(xué)報(bào),2014,33(1):25—29Jun,wangX玎ing,zhangHua,eta1.correctionoftroposphericrefractionerroroftrackingdataanderroranalysis[J].nalofSpacecraftTT&CTechnology,2014,33
2、(1):25—29.外測數(shù)據(jù)對流層折射誤差修正及精度分析趙軍1’2,王西京1,張華1,陳建榮1,劉玉梅3(1.宇航動(dòng)力學(xué)國家重點(diǎn)實(shí)驗(yàn)室·西安·710043;2.西北工業(yè)大學(xué)‘西安。710072;3.中國電波傳播研究所青島分所·山東青島·266107)摘要:針對對流層引起的航天器外測數(shù)據(jù)折射誤差,基于對流層分段模型,以測站歷史氣象數(shù)據(jù)擬合折射衰減系數(shù),建立測控站上空對流層折射率模型,并利用實(shí)測地面折射率對統(tǒng)計(jì)模型進(jìn)行優(yōu)化,進(jìn)一步提高模型反映大氣剖面的真實(shí)性。利用該模型對S頻段多顆在軌衛(wèi)星50多跟蹤圈次的實(shí)測外測數(shù)據(jù)進(jìn)行修正分析,并與微波輻射計(jì)
3、實(shí)時(shí)修正結(jié)果進(jìn)行比較,測距、測角、測速互差分別優(yōu)于o.9m、o.02。、o.06m/s。將該模型應(yīng)用于衛(wèi)星長管外測數(shù)據(jù)的實(shí)時(shí)修正,可提高軌道測量數(shù)據(jù)質(zhì)量。關(guān)鍵詞:對流層修正;分段模型;模型優(yōu)化;微波輻射計(jì);精度分析中圖分類號:V557.5文獻(xiàn)標(biāo)志碼:A文章編號:1674—5620(2014)01一0025一05DOI:10.7642/j.issn.1674—5620.2014—01一0025一05CorrectionofTroposphericRefractionErrorofTrackingDataandErrorAnalysisZHAO
4、Junl”,WANGXijin91,ZHANGHual,CHENJianron91,LIUYumei3(1.StateKeyLaboratoryofAstronauticDynamics,Xi’an710043;2.NorthwesternPolytechnicalUniVersity,Xi’an710072;3.ChinaResearchInstituteofRadiowavePropagationQingdaoBranch,Qingdao,ShandongProvince266107)Abstract:Tomeasuretherefra
5、ctionerrorofspacecrafttrackingdatacausedbytroposphere,astatisticaltropospher—icrefractiveindexmodelforTT&Cstationsisestablishedbyfittingofrefractionattenuationcoefficientswithhistor—icalmeteorologicaldatabasedontroposphericsegmentationmodel.Thestatisticalindexmodelisfurthe
6、roptimizedusingmeasuredgroundrefractiveindextoreflecttheatmosphericpro“1esasaccuratelyaspossible.Themodelisusedincorrectionanalysisformorethan50passesofthetrackingdataofseveralin—orbits-bandsatellitesandtheresultiscomparedwiththatmeasuredbymicrowaveradiometers.Itisfoundtha
7、ttheerrorofranging,angularmeasurementandrangerateissmallerthan0.9m,O.02。and±O.06m/srespectively.Theproposedmodelisap—pliedinreal—timetrackingdataerrorcorrectioninroutinesatelliteoperationmanagementtoincreasethequalityoforbitdeterminationdata.Keywords:troposph“ccoHection;se
8、gmentationmodel;modeloptirllization;rIlicrowaVeradiometer;accuracyamlysisO引言無線電測量電波經(jīng)過大氣對流