预览加载中，请您耐心等待几秒...

激光陀螺单轴旋转式惯导系统的转动方案分析(英文).docx

预览
1/3
2/3
3/3

在线预览结束，喜欢就下载吧，查找使用更方便

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

激光陀螺单轴旋转式惯导系统的转动方案分析(英文) Introduction Gyroscope-basedinertialnavigationsystemshavebeenwidelyusedinvariousfields,includingaircraft,ships,andautomobiles,toimprovenavigationaccuracyandstability.Amongvariousgyroscopes,lasergyroscopeshaveattractedincreasingattentionduetotheirhighaccuracy,longlifespan,andstrongresistancetoexternaldisturbances. Inthispaper,wewillanalyzetherotationschemeofalasergyroscopesingle-axisrotationinertialnavigationsystem(SARINS)anditsapplicationinnavigationsystems.Specifically,wewillfocusonthesystemarchitecture,operatingprinciples,andmathematicalmodelsoftheSARINS.Wewillalsodiscussitsadvantagesandlimitationsanditspotentialimprovements. SystemArchitectureofSARINS TheSARINSconsistsofthreemaincomponents:alasergyroscope,acontrolcircuit,andanavigationprocessor. LaserGyroscope:ThelasergyroscopeisthecorecomponentoftheSARINS,whichmeasurestherotationrateofthesystembydetectingthephaseshiftofthelightbeam.Thelasergyroscopeconsistsofanactivelasercavityandapassiveringresonator.Theactivelasercavitygeneratesalaserbeam,whichissplitintotwobeamsthattravelinoppositedirectionsaroundtheringresonator.Thephaseshiftofthetwobeamsisdetectedtodeterminetherotationrateofthesystem. ControlCircuit:Thecontrolcircuitreceivestheoutputofthelasergyroscopeandcontrolsitsoperation.Thecontrolcircuitmainlyincludesapowersupply,atemperaturecontrolsystem,andadrivecircuit.Thepowersupplyprovidestherequiredworkingvoltageforthelasergyroscope,andthetemperaturecontrolsystemmaintainsthetemperatureofthelasergyroscopeatastablelevel.Thedrivecircuitdrivestheactivelasercavityandcontrolsthemodulationofthelaserbeam. NavigationProcessor:Thenavigationprocessorreceivestheoutputofthelasergyroscopeandprocessesthedatatodeterminethemotionparametersofthesystem.Thenavigationprocessormainlyincludesananalog-to-digitalconverter,asignalprocessingunit,andanavigationalgorithm.Theanalog-to-digitalconverterconvertstheanalogsignalofthelasergyroscopeintodigitaldata.Thesignalprocessingunitfiltersandprocessesthedatatoremovenois