Abstract
The University La Sapienza participated recently in the project SAFE‐AIRPORT funded within the sixth framework program of the European Commission. This project aimed at developing a phased antenna array of about 500 microphones in order to acoustically detect and track flying airplanes. A preliminary field testing was performed at Rome‐Fiumicino airport, however experimental data are not yet fully available. For this reason, a computer‐aided model of the antenna phased array was developed and beam‐forming was simulated with real input signals (acoustic emissions from a real landing aircraft with superimposed disturbing, spatially uncorrelated, pink noise of realistic level). Detection range was measured by applying classic shift and sum beamforming. An algorithm was tested in order to increase maximum detection range by exploiting information from more than one temporal frequency, assuming that disturbing environmental noise is uncorrelated on different temporal frequencies. Specific results are reported.
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