SRV constraint based FIB design for wideband linear array-中国Betway体育网页登陆

摘要 Frequency-invariantbeamformer(FIB)designisakeyissueinwidebandarraysignalprocessing.Tousecommonlywidebandlineararraywithtappeddelayline(TDL)structureandcomplexweights,theFIBdesignisprovidedaccordingtotheruleofminimizingthesidelobelevelofthebeampatternatthereferencefrequencywhilekeepingthedistortionlessresponseconstraintinthemainlobedirectionatthereferencefrequency,thenormconstraintoftheweightvectorandtheamplitudeconstraintoftheaveragedspatialresponsevariation(SRV).Thiskindofbeamformerdesignproblemcanbesolvedwiththeinterior-pointmethodafterbeingconvertedtotheformofstandardsecondorderconeprogramming(SOCP).ThecomputersimulationsarepresentedwhichillustratetheeffectivenessofourFIBdesignmethodforthewidebandlineararraywithTDLstructureandcomplexweights.

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SRV constraint based FIB design for wideband linear array

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