?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F484%2F&rft.title=A+Non-Destructive+Microwave+Approach+for+the+Detection+of+Multiple+Defects+in+Industrial+Products&rft.creator=Benedetti%2C+Manuel&rft.creator=Franceschini%2C+Davide&rft.creator=Massa%2C+Andrea&rft.creator=Rosani%2C+Andrea&rft.creator=Pastorino%2C+Matteo&rft.subject=TU+Technical+Reports+and+Publications&rft.description=The+non-destructive+inspection+is+a+key-problem+in+many+industrial+processes+since+the+detection+of+defects+or+cracks+in+the+products+is+mandatory.+Many+tomographic+approaches+that+have+been+proposed+are+based+on+the+use+of+interrogating+microwaves+and+their+effectiveness+in+inspecting+dielectric+or+conductive+materials+has+been+demonstrated.+In+general%2C+a+NDT%2FNDE+problem+solved+through+an+inverse+scattering+technique+is+still+ill-conditioned+and+non-linear.+However%2C+unlike+standard+microwave+imaging+problems+where+a+complete+image+of+the+unknown+investigation+domain+is+required%2C+a+lot+of+a+priori+information+on+the+scenario+under+test+(the+industrial+product)+is+available.+In+this+framework%2C+Caorsi+et+al.+proposed+an+optimization+technique+(FGA)+%5B1%5D%2C+where+a+reduction+of+the+number+of+problem+unknowns+was+achieved+by+exploiting+such+an+a+priori+information+about+the+inspected+geometry.+As+a+matter+of+fact%2C+a+non-destructive+inspection+is+aimed+at+detecting+an+unknown+defect+inside+a+known+unperturbed+host+medium+lying+on+a+known+background.+Starting+from+this+assumption%2C+the+a-priori+information+on+the+unperturbed+structure+was+exploited+by+means+of+a+suitable+Genetic+Algorithm+(GA).+As+a+consequence%2C+the+inverse+scattering+problem+in+hand+was+significantly+simplified+since+the+unknowns+was+reduced+to+an+array+of+geometric+parameters+of+the+defect%3A+the+position+of+the+defect%2C+its+size+and+orientation%2C+and+its+electromagnetic+properties.&rft.date=2011-01&rft.type=Technical+Report&rft.type=NonPeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F484%2F1%2FDISI-11-265.C100.pdf&rft.identifier=++Benedetti%2C+Manuel+and+Franceschini%2C+Davide+and+Massa%2C+Andrea+and+Rosani%2C+Andrea+and+Pastorino%2C+Matteo++(2011)+A+Non-Destructive+Microwave+Approach+for+the+Detection+of+Multiple+Defects+in+Industrial+Products.++%5BTechnical+Report%5D+++++