?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F734%2F&rft.title=Robust+Multi-Frequency+Subsurface+Imaging+through+Evolutionary+Optimization&rft.creator=Salucci%2C+M.&rft.creator=Poli%2C+L.&rft.creator=Anselmi%2C+N.&rft.creator=Massa%2C+A.&rft.subject=A+WC+Next+Generation+Wireless+Communications&rft.subject=M+EA+Evolutionary+Algorithms&rft.description=In+this+work%2C+an+innovative+stochastic+method+for+subsurface+microwave+imaging+is+presented.+The+proposed+approach+solves+the+subsurface+inverse+scattering+problem+by++jointly+processing+multiple+frequency+components+of+the+measured+wide-band+ground+penetrating+radar+(GPR)+data.+Moreover%2C+an+iterative+multi-zooming+approach+is+adopted%2C+in+order+to+reduce+the+ratio+between+problem+unknowns+and+informative+data%2C+as+well+as+to+adaptively+enforce+increased+resolutions+in+correspondence+with+the+identified+regions+of+interest.+The+minimization+of+the+multi-frequency+(MF)+cost+function+is+performed+at+each+multi-resolution+step+by+means+of+a+customized+particle+swarm+optimization+(PSO)+algorithm%2C+thanks+to+its+capability+of+escaping+from+local+minima%2C+corresponding+to+false+solutions+of+the+inverse+scattering+problem.+Some+numerical+results+are+shown%2C+in+order+to+assess+the+performance+of+the+developed+MF-IMSA-PSO+method+in+retrieving+buried+targets+having+different+shape+and+composition%2C+as+well+as+to+compare+it+to+a+deterministic+implementation+within+the+same+framework+(i.e.%2C+the+MF-IMSA-CG).&rft.publisher=University+of+Trento&rft.date=2017&rft.type=Monograph&rft.type=NonPeerReviewed&rft.format=text&rft.language=en&rft.identifier=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F734%2F1%2FRobust%2520Multi%25E2%2580%2590Frequency%2520Subsurface%2520Imaging%2520through%2520Evolutionary%2520Optimization.pdf&rft.identifier=++Salucci%2C+M.+and+Poli%2C+L.+and+Anselmi%2C+N.+and+Massa%2C+A.++(2017)+Robust+Multi-Frequency+Subsurface+Imaging+through+Evolutionary+Optimization.++Technical+Report.+University+of+Trento.+++++