?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F378%2F&rft.title=Particle+Density+Retrieval+in+Random+Media+Using+a+Percolation+Model+and+a+Particle+Swarm+Optimizer&rft.creator=Martini%2C+Anna&rft.creator=Donelli%2C+Massimo&rft.creator=Franceschetti%2C+Massimo&rft.creator=Massa%2C+Andrea&rft.subject=TU+Technical+Reports+and+Publications&rft.description=This+letter+is+a+rst+attempt+to+apply+a+percolation+theory+model+to+the+estimation+of+the+density+of+particles+in+complex+layered+two-dimensional+media+from+electromagnetic+measurements.+A+procedure+based+on+an+analytical+closed-form+description+of+the+wave+propagation+process+is+presented.+The+problem+is+recast+as+an+iterative+optimization+one+and+solved+by+means+of+a+particle+swarm+optimizer.+Numerical+experiments+show+the+validity+of+the+proposed+solution.+(c)+2007+IEEE.+Personal+use+of+this+material+is+permitted.+Permission+from+IEEE+must+be+obtained+for+all+other+users%2C+including+reprinting%2F+republishing+this+material+for+advertising+or+promotional+purposes%2C+creating+new+collective+works+for+resale+or+redistribution+to+servers+or+lists%2C+or+reuse+of+any+copyrighted+components+of+this+work+in+other+works.&rft.date=2011-01&rft.type=Technical+Report&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fwww.eledia.org%2Fstudents-reports%2F378%2F1%2FDISI-11-049.R142.pdf&rft.identifier=++Martini%2C+Anna+and+Donelli%2C+Massimo+and+Franceschetti%2C+Massimo+and+Massa%2C+Andrea++(2011)+Particle+Density+Retrieval+in+Random+Media+Using+a+Percolation+Model+and+a+Particle+Swarm+Optimizer.++%5BTechnical+Report%5D+++++