ResearchonLargeRangeHighprecisionAngleMeasurementAlgorithminRVDMicrowaveDockingRadar

doi:10.3780/j.issn.1000-758X.2013.05.007

Chinese Space Science and Technology ›› 2013, Vol. 33 ›› Issue (5): 43-48.doi: 10.3780/j.issn.1000-758X.2013.05.007

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ResearchonLargeRangeHighprecisionAngleMeasurementAlgorithminRVDMicrowaveDockingRadar

YAN Qi, YANG Rui-Qiang, ZONG Nian-Ke, ZHANG Peng, CAI Chun-Gui

(ChinaAcademyofSpaceTechnology(Xi′an)，Xi′an710100)

Received:2012-09-11 Revised:2013-03-18 Published:2013-10-25 Online:2013-10-25

Abstract

Abstract: Thetraditionalanglemeasurementmethodsofmicrowaveradararedifficulttosatisfyaccuracyrequirementsundertherendezvousanddockingnearfieldconditions.Toachievethehighprecisionanglemeasuringinawiderangeincludingnearfieldaswellasfarfield,anewalgorithmbasedonphasedifferencecomplexvectormatchingwasproposed.Firstly,anobjectfunctionwasdefinedtoquantifythesimilarityofthephasedifferencecomplexvector.Secondly,anonlinearprogrammingmodelwasestablishedtoestimatetheazimuthandelevationanglesandthesolvingstepsofthemodelweredescribedindetail.Finally,theresultsofnumericalsimulation,airborneflighttestandanechoicchamberexperimentprovetheeffectivenessofthealgorithmwithahighprecisionof0.12°.

Key words: Rendezvousanddocking, Radar, Largescale, Phasedifferencecomplexvectormatching, Anglemeasurement, Spacecraft

YAN Qi, YANG Rui-Qiang, ZONG Nian-Ke, ZHANG Peng, CAI Chun-Gui. ResearchonLargeRangeHighprecisionAngleMeasurementAlgorithminRVDMicrowaveDockingRadar[J]. Chinese Space Science and Technology, 2013, 33(5): 43-48.

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URL: https://journal26.magtechjournal.com/kjkxjs/EN/10.3780/j.issn.1000-758X.2013.05.007

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ResearchonLargeRangeHighprecisionAngleMeasurementAlgorithminRVDMicrowaveDockingRadar

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