%0 Journal Article
%T Detecting Point-Like Sources of Unknown Frequency Spectra
%A Raffaele Solimene
%A Giuseppe Ruvio
%A Angela DellĄŻAversano
%A Antonio Cuccaro
%A Max J. Ammann
%A Rocco Pierri
%J PIER    B
%D 2013
%I EMW Publishing
%R 10.2528/PIERB13030414
%X The problem of detecting point-like sources whose frequency spectrum is unknown is addressed. Limitations of single-frequency approaches are identified by analytical as well as numerical arguments. To overcome these limits, different multifrequency approaches which combine frequency data incoherently are compared. In particular, a novel multifrequency MUSIC-like algorithm based on interferometric idea is proposed. Results show that the algorithm outperforms other methods under comparison.
%U http://www.jpier.org/pierb/pier.php?paper=13030414