?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F740%2F&rft.title=An+Evolutionary+Optimization+Method+for+Solving+the+Multi-Frequency+GPR+Subsurface+Problem&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+the+two-dimensional+subsurface+imaging+problem+is+solved+by+processing+wide-band+ground+penetrating+radar+(GPR)+data.+Towards+this+end%2C+an+innovative+microwave+inverse+scattering+technique+is+presented.+The+developed+methodology+is+based+on+a+particle+swarm+optimization+(PSO)+solver+to+minimize+the+arising+multi-frequency+(MF)+cost+function+measuring+the+mismatch+between+measured+and+retrieved+data.+Moreover%2C+an+iterative+multi-resolution+strategy+is+exploited+in+order+to+progressively+and+adaptively+refine+the+resolution+of+the+retrieved+images+only+within+the+regions+of+interest+in+which+the+presence+of+a+buried+object+has+been+detected.+Some+numerical+results+are+shown%2C+in+order+to+assess+the+effectiveness+of+the+developed+MF-IMSA-PSO+strategy+in+reconstructing+dielectric+objects+buried+at+different+depths.+Some+experiments+are+also+shown+to+verify+the+robustness+of+the+proposed+method+when+the+background+permittivity+is+not+constant+but+smoothly+varying+with+the+distance+from+the+interface.&rft.publisher=ELEDIA+Research+Center+-+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%2F740%2F1%2FAn%2520Evolutionary%2520Optimization%2520Method%2520for%2520Solving%2520the%2520Multi-Frequency%2520GPR%2520Subsurface%2520Problem.pdf&rft.identifier=++Salucci%2C+M.+and+Poli%2C+L.+and+Anselmi%2C+N.+and+Massa%2C+A.++(2017)+An+Evolutionary+Optimization+Method+for+Solving+the+Multi-Frequency+GPR+Subsurface+Problem.++Technical+Report.+ELEDIA+Research+Center+-+University+of+Trento.+++++