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《衛(wèi)星平臺(tái)運(yùn)動(dòng)對(duì)高分辨率光學(xué)遙感成像系統(tǒng)影響分析》由會(huì)員上傳分享,免費(fèi)在線(xiàn)閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、中國(guó)空間科學(xué)技術(shù)Jun暢252017Vol暢37No暢386‐92ChineseSpaceScienceandTechnologyISSN1000‐758XCN11‐1859/Vhttp:∥zgkj暢cast暢cnDOI:10暢16708/j暢cnki暢1000‐758X暢2017暢0056衛(wèi)星平臺(tái)運(yùn)動(dòng)對(duì)高分辨率光學(xué)遙感成像系統(tǒng)影響分析1,2,倡1范斌,于起峰1暢國(guó)防科技大學(xué),長(zhǎng)沙4100732暢北京空間機(jī)電研究所,北京100094摘要:在高分辨率光學(xué)遙感成像過(guò)程中,衛(wèi)星平臺(tái)的不穩(wěn)定性將影響相機(jī)成像質(zhì)量。針對(duì)該問(wèn)題,在分析動(dòng)態(tài)降質(zhì)機(jī)理的基
2、礎(chǔ)上分別就面陣凝視模式、線(xiàn)陣推掃模式及時(shí)間延遲積分(TimeDelayandIntegration,TDI)推掃模式提出了相應(yīng)的動(dòng)態(tài)成像仿真模型,以此模擬不同情況下的退化結(jié)果。以高分辨率遙感相機(jī)為對(duì)象,開(kāi)展多種情況下的仿真試驗(yàn)分析。結(jié)果表明,同等平臺(tái)運(yùn)動(dòng)條件下,TDI推掃模式下的圖像質(zhì)量下降更明顯;分辨率越高,像質(zhì)對(duì)平臺(tái)振動(dòng)的響應(yīng)靈敏度越高。最后結(jié)合仿真模型及圖像評(píng)價(jià)參量,建立起空間分辨率與平臺(tái)顫振指標(biāo)之間的關(guān)系,給出不同空間分辨率下的平臺(tái)運(yùn)動(dòng)誤差閾值,為平臺(tái)振動(dòng)抑制和補(bǔ)償提供約束條件。關(guān)鍵詞:平臺(tái)運(yùn)動(dòng);光學(xué)成像;高分辨率;仿真模型;圖像
3、質(zhì)量中圖分類(lèi)號(hào):V445暢8文獻(xiàn)標(biāo)識(shí)碼:ASimulationanalysisofplatformvibrationonimagequalityofsatellite‐basedhigh‐resolutionopticalsystem1,2,倡1FANBin,YUQifeng1NationalUniversityofDefenseTechnology,暢Changsha410073,China2BeijingInstituteofspaceMechanics&Electric暢ity,Beijing100190,ChinaAbstract
4、:Duringtheimagingprogressofspacebasedhigh‐resolutioncamera,theimagequalitywillbeaffectedbyinstabilityofsatelliteplatform.Aimedtothisproblem,mechanismofimagequalitydegradationduetoimagemotionwasfirstlyanalyzedandthendifferentsimulationmodelsforstaring,linearscanningandtime
5、delayandintegrationimagingmodeswerebroughtuptosimulateimagescausedbyimagemotion.Thehigh‐resolutionremotesensorwasthentakenasthesimulationexampletoanalyzeimagequalityunderdifferentconditions.TheresultsshowthatmoreimagedegradationisbroughtbyvibrationforTDIimagingmodeandimag
6、equalityismoresensitivetoplatformvibrationwithhigher收稿日期:2016‐10‐25;修回日期:2017‐02‐10;錄用日期:2017‐05‐18;網(wǎng)絡(luò)出版時(shí)間:2017‐05‐3110:48:33網(wǎng)絡(luò)出版地址:http:∥kns暢cnki暢net/kcms/detail/11暢1859暢V暢20170531暢1048暢007暢html倡通訊作者:范斌(1972-),女,博士研究生,fanbin_bisme@163暢com,研究方向?yàn)楣鈱W(xué)遙感系統(tǒng)總體:,于起峰.衛(wèi)星平臺(tái)運(yùn)動(dòng)對(duì)高分辨率光學(xué)
7、遙感成像系統(tǒng)影響分析引[用J]格.式范斌,2017,37(3):8692.FANB,YUQF.Simulationanalysisofplatformvibrationonimagequalityofsatellitebasedhighresolutionopticalsystem[J].ChineseSpaceScienceandTechnology,2017,37(3):8692(inChinese).范斌,等:衛(wèi)星平臺(tái)運(yùn)動(dòng)對(duì)高分辨率光學(xué)遙感成像系統(tǒng)影響分析87resolution.Atlast,therelationbetweens
8、patialresolutionandplatformvibrationparameterswasbuiltandtolerancesofvibrationamplitudeweregiven