%0 Journal Article
%A Harris, Isaac
%A Kleefeld, Andreas
%T Analysis of new direct sampling indicators for far-field measurements
%J Inverse problems
%V 35
%N 5
%@ 1361-6420
%C Bristol [u.a.]
%I Inst.
%M FZJ-2019-01631
%P 054002
%D 2019
%X This article focuses on the analysis of three direct sampling indicators which can be used for recovering scatterers from the far-field pattern of time-harmonic acoustic measurements. These methods fall under the category of sampling methods where an indicator function is constructed using the far-field operator. Motivated by some recent work, we study the standard indicator using the far-field operator and two indicators derived from the factorization method. We show equivalence of two indicators previously studied  as well as propose a new indicator based on the Tikhonov regularization applied to the far-field equation for the factorization method.Finally, we give some numerical examples to show how the reconstructions compare to other direct sampling methods.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000466266300002
%R 10.1088/1361-6420/ab08be
%U https://juser.fz-juelich.de/record/861047