資源描述:
《基于艦船運(yùn)動(dòng)預(yù)報(bào)的艦載機(jī)著艦指導(dǎo)系統(tǒng)研究》由會(huì)員上傳分享,免費(fèi)在線閱讀,更多相關(guān)內(nèi)容在學(xué)術(shù)論文-天天文庫(kù)。
1、哈爾濱1=程犬學(xué)碩士學(xué)位論文摘要艦船運(yùn)動(dòng)對(duì)艦載機(jī)安全著艦影響很大,即使是在中等海況條件下,艦船縱搖腳也能達(dá)到1”左右,致使艦尾比預(yù)期抬高2米,而實(shí)際艦載機(jī)掛鉤與艦尾的間距一般只有3米。為減小艦船運(yùn)動(dòng)對(duì)艦載機(jī)的影響,人們不斷研究和發(fā)展新的方法。其中,在艦載機(jī)著艦指導(dǎo)系統(tǒng)中引入艦船運(yùn)動(dòng)預(yù)報(bào)是一個(gè)重要的研究方向。本文首先通過對(duì)艦船運(yùn)動(dòng)的分析、建模和各種預(yù)報(bào)方法的比較,確定了一種自適應(yīng)AR建模預(yù)報(bào)方法,它能夠通過改進(jìn)的最小二乘遞推算法實(shí)現(xiàn)艦船運(yùn)動(dòng)的在線實(shí)時(shí)預(yù)報(bào)。然后,僅限于著艦指導(dǎo)系統(tǒng)引入艦船縱搖運(yùn)動(dòng)預(yù)報(bào)這一簡(jiǎn)單應(yīng)用場(chǎng)合,著重對(duì)縱
2、搖預(yù)報(bào)的引入方式進(jìn)行了詳細(xì)的分析,給出了助降鏡的光坡面傾角與艦船縱搖預(yù)報(bào)值的對(duì)應(yīng)關(guān)系,并提出了具體的基于預(yù)報(bào)的著艦指導(dǎo)系統(tǒng)設(shè)計(jì)方案。基于前兩部分的工作,進(jìn)一步設(shè)計(jì)了以DSP為核心的艦船運(yùn)動(dòng)預(yù)報(bào)器和在VC環(huán)境下的基于預(yù)報(bào)的著艦指導(dǎo)系統(tǒng)軟件仿真。結(jié)果表明,艦載機(jī)著艦指導(dǎo)系統(tǒng)中引入艦船運(yùn)動(dòng)預(yù)報(bào)是可行的,它將有效減小艦船運(yùn)動(dòng)對(duì)艦載機(jī)著艦的影響,提高艦載機(jī)著艦安全。該課題是在查閱大量國(guó)內(nèi)外資料并結(jié)合國(guó)內(nèi)實(shí)際情況的前提下完成的,浚課題所做的工作相信會(huì)對(duì)發(fā)展我國(guó)的艦載機(jī)著艦指導(dǎo)技術(shù)提供有益的參考。關(guān)鍵詞:艦船運(yùn)動(dòng)預(yù)報(bào);自適應(yīng)AR模型;最
3、小二乘算法;艦載機(jī)著艦指導(dǎo)lI合爾濱I.科人學(xué)碩1:學(xué)位}^文AbstractMotionofshiphasagreatinfluencetosafeofcarrieraircraftslandingEvenifatthemiddleconditionofwave,becauseofshiplongitudinalangleapproaching1o,shipsternwillriseabout2rnaboveexpectionincontastwith3mclearancebetweencarrieraircraftsp
4、othookandshipstern.inordertoreduceinfluenceforcarrieraircraftslandingtoshipmotion,peoplecontinuallystudyanddevelopnewmethods.Inthesemethods,itisaimportantstudyrealmthatpredictionofshipmotionapplyingtoguidingsystemofcarrieraircraftslanding.Inthispaper,onthegroundof
5、analyzingandmodelingofshipmotionandcomparenmentofakindofpredictionmethods,firstlyanpredictionmethodol’adaptiveARmodelisintroducedanditcanrealizereal—timepredictionthroughRLSalgorithmn,Then,aimingatthesituationofshiplongitudinalpredictionapplyingguidingsystem,weemp
6、hasizlyanalyzappliedmeanofpredictionatguidingsystemandprovidemappingrelationbetweenlightbevelandlongitudinalangle.Furtherly,predictionsystemofshipmotionandsoftsimulationssystemofguidingsystembasedonpredictionunderVCentiromnentaredesigned.Consequenceindicates,itisf
7、easibletopredictionofshipmotionapplyingtoguidingsystem.Itcontributstoreduceinfluenceofshipmotionforcarrieraircraftslandingandimprovesafeofcarrieraircrafts.Thispaperhasbeaccomplishedonpremissofalotofdomesticandoverseasreferencebeingresearchedanddomesticactualsituat
8、ionbeingconsidered.Itisbelievedtobehelpfulfordevelopingourcountry’sguidingsystemofcarrieraircraftslanding.Keywords:shipmotionprediction;adaptiveARmodel;