AnOnlineIndividualChannelInterrelationMethodStudyofAntennaArrayCalibration

doi:10.3780/j.issn.1000-758X.2015.06.009

Chinese Space Science and Technology ›› 2015, Vol. 35 ›› Issue (6): 75-.doi: 10.3780/j.issn.1000-758X.2015.06.009

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AnOnlineIndividualChannelInterrelationMethodStudyofAntennaArrayCalibration

LIU Han-Chao, LIANG Hao

（1BeijingSpaceInformationRelayandTransmissionTechnologyResearchCenter, Beijing100094)〖JP〗
(2StateKeyLaboratoryofParticleDetectionandElectronics (IHEPUSTC), UniversityofScienceandTechnologyofChina, Hefei230026)

Received:2015-03-27 Revised:2015-07-17 Published:2015-12-25 Online:2015-12-25

Abstract

Abstract: Duetotheclockfrequencydifferencebetweenthetransmitterandthereceiver, itisdifficultforthemultiantennasatellitemobilecommunicationchannelcalibrationinlowsignalnoiseratiol(SNR). Anonlineindividualchannelmulticycleinteraccumulationmethodwasproposed, whichcouldsolvethedifficultyofchannelcalibrationinlowSNR.Thiscalibrationspreadspectrumsignalwasproducedfromgroundcalibrationstation, whichcouldreducethecomplexityofsatellitedesignandrealizeonlinecalibrationwithoutinterruptingthecommunicationforusers. Thismethodsolvestheproblemofcodeoffsetandfrequencyoffsetthroughmarkingthevaliddata, matchingrate,andsoon. TheresultsshowthattheSNRis-30dBunderthespreadingradioof1023,whichis 03dBworsethanthatofthetheorySNR. Thestudycanprovidetechnicalsupportforthemultiantennasatellitemobilecommunication.

Key words: Array signal, Calibration, Frequency offset, PN code offset, Multicycle accumulation

LIU Han-Chao, LIANG Hao. AnOnlineIndividualChannelInterrelationMethodStudyofAntennaArrayCalibration[J]. Chinese Space Science and Technology, 2015, 35(6): 75-.

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URL: https://journal26.magtechjournal.com/kjkxjs/EN/10.3780/j.issn.1000-758X.2015.06.009

https://journal26.magtechjournal.com/kjkxjs/EN/Y2015/V35/I6/75

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AnOnlineIndividualChannelInterrelationMethodStudyofAntennaArrayCalibration

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