摘要
Intheterahertz(THz)band,theinherentshakeofthehumanbodymaystronglyimpairtheimagequalityofabeamscanningsinglefrequencyholographysystemforpersonnelscreening.Torealizeaccurateshakecompensationinimagingprocessing,itisquitenecessarytodevelopahigh-precisionmeasuresystem.However,inmanycases,differentpartsofahumanbodymayshaketodifferentextents,resultingingreatlyincreasingthedifficultyinconductingareasonablemeasurementofbodyshakeerrorsforimagereconstruction.Inthispaper,abodyshakeerrorcompensationalgorithmbasedontherawdataisproposed.Toanalyzetheeffectofthebodyshakeontherawdata,amodelofechoedsignalisrebuiltwithconsideringboththebeamscanningmodeandthebodyshake.Accordingtotherebuiltsignalmodel,wederivethebodyshakeerrorestimatedmethodtocompensateforthephaseerror.Simulationonthereconstructionofpointtargetswithshakeerrorsandproof-of-principleexperimentsonthehumanbodyinthe0.2-THzbandarebothperformedtoconfirmtheeffectivenessofthebodyshakecompensationalgorithmproposed.
出版日期
2016年08月18日(中国期刊网平台首次上网日期,不代表论文的发表时间)