›› 2017, Vol. 37 ›› Issue (2): 1-10.doi: 10.16708/j.cnki.1000-758X.2017.0051

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XPNAV-1Satellitetimingdataanalysisandpulseprofilerecovery

 HUANG  Liang-Wei1,*, SHUAI  Ping, ZHANG  Xin-Yuan1, CHEN  Shao-Long1, , XU  Li-Hong2, YANG  Zhe2,  DENG  Lou-Lou3, CHEN  Jian-Wu3, SHI  Yong-Qiang3, XUE  Li-Jun4,  DING  Qiang-Qiang4, WU  Yao-Jun1 , BEI  Xiao-Min1, MENG  Jing1, LIN  Qing-Qing1, CHEN  Qiang1, ZHANG  Qian1, ZHANG  Heng-Bin1   

  1. 1QianXuesenLaboratoryofSpaceTechnology,Beijing100094,China
    2ChinaAcademyofSpaceTechnology,Beijing100094,China
    3BeijingInstituteofControlEngineering,Beijing100190,China
    4ShenzhenAerospaceDongfanghongDevelopmentLtd.,Shenzhen518054,China
  • Received:2017-04-11 Revised:2017-04-19 Online:2017-06-25 Published:2017-04-24

Abstract: XPNAV-1isthefirstsatelliteofChinadesignedfortheon-orbitdemonstrationoftheX-raypulsarnavigationtechnology.TheX-raytimingdataanalysismethodwasdiscussed,andthepulseprofileusingtheobservationdatawasrecoveredtoverifythecapabilityofobservingpulsarsinspace.ThescientificmissionoverviewofXPNAV-1wasdescribed.Thephotontimingdataprocessingstepsweredesigned,andtheX-raytimingdelaymodelwasconstructed.Basedontheproposedmodel,theobservedphotonarrivaltimesoftheCrabpulsarwerecorrectedtotheinertialreferencepoint,andthenthepulseprofilewasrecoveredthroughtheepochfoldingtechnology.TherecoveredprofileshowsthatthetwopeakstructurestandsfortheCrab′sradiationshape,provingthatCrabissuccessfullyobservedbytheX-raydetectorofChina.

Key words: X-raypulsar, XPNAV-1, Crabpulsar, X-raydetector, pulseprofile, epochfolding