预览加载中，请您耐心等待几秒...

基于X射线脉冲星的新型卫星天文导航(英文).docx

预览
1/2
2/2

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

基于X射线脉冲星的新型卫星天文导航(英文) NewSatelliteAstronomyNavigationBasedonX-RayPulsars Abstract: Withtheincreasingdevelopmentofspacetechnology,satellitenavigationhasbecomeoneofthemostimportantapplicationsofspacetechnology.Traditionalnavigationsystems,suchasGPS,facemanychallenges,suchasweaksignalsandlimitedcoverageinsomeareas.X-raypulsars,asnaturalclocksinspace,haveexcellentstabilityandaccuracy,whichcanbeusedtoestablishanewsatelliteastronomynavigationsystem.ThispaperintroducesthebasicprinciplesofX-raypulsarsandtheadvantagesofusingthemforsatellitenavigation.Inaddition,weanalyzethechallengesfacedbythissystemandproposesomesolutions.Finally,wesummarizetheprospectsofthisnewtechnologyinsatellitenavigation. Keywords:X-raypulsars,satellitenavigation,naturalclock,stabilityandaccuracy. Introduction: Satellitenavigationisofgreatsignificanceinmodernsociety,anditsdevelopmenthasbroughtaboutgreatchangestopeople'sdailylives.Withthecontinuousdevelopmentofvariousnavigationtechnologies,satellitenavigationsystems,suchasGPS,havebecomethemostcommonlyusednavigationtools.However,GPSstillfacesmanychallenges,suchasweaksignalsandlimitedcoverageinsomeareas.Inresponse,researchershavebeenexploringnewnavigationtechnologiestoovercometheseandotherlimitations. X-raypulsarsareonesuchtechnology.Asoneofthemoststableandaccurateclocksintheuniverse,theyhavegreatpotentialinthefieldofsatelliteastronomynavigation.Comparedwithtraditionalnavigationtechnologies,X-raypulsarshavedistinctadvantages. BasicPrinciplesofX-rayPulsars: X-raypulsarsareakindofcelestialbodythatcanemitperiodicX-rayradiation.Theyarehighlymagnetizedneutronstars,consistingofacelestialbodyjustafewkilometersinradius,butwithamassequivalenttoabout1.4timesthatofthesun.ThemagneticfieldofX-raypulsarscanreach10^12Gauss,whichismillionsoftimesstrongerthanthatofthestrongestpermanentmagnetonEarth.TherotationofX-raypulsarsishighlystable,andtheperiodcanbeasshortasafewmilliseconds.Asaresult,theX-rayradiationemittedbythesepulsarsexhibitsahighlyregularandperiodicpattern. Adv