Aircraft classification and noise map estimation based on real-time measurements of take-off noise

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper summarizes a new methodology about aircrafts identification and the generation of estimated noise map based on real time noise measurement for each take-off. The data acquisition is made at 50 Ks/s and 24 bits, during 24 seconds of aircraft take-off. The aircraft identification is made through two parallel neural networks combined with a weighted addition. In order to generate the inputs to the neural networks, the features were obtained from the auto-regressive (AR) model and the 1/12 octave analysis. This system has 13 categories of aircrafts and has an identification level above 84% in real environments. Noise signals generated during aircraft take-off are measured in a fixed location on the airport runway end using a linear 4-microphone array. The noise map is made for each take-off and presents four layers related to four time intervals of take-off. Each time interval is represented by an equivalent point sound source location based on estimation of time-difference-of-arrival (TDOA) of the acoustic wave of aircraft taking-off.

Original languageEnglish
Title of host publicationNCTA 2011 - Proceedings of the International Conference on Neural Computation Theory and Applications
Pages153-162
Number of pages10
StatePublished - 2011
EventInternational Conference on Neural Computation Theory and Applications, NCTA 2011 - Paris, France
Duration: 24 Oct 201126 Oct 2011

Publication series

NameNCTA 2011 - Proceedings of the International Conference on Neural Computation Theory and Applications

Conference

ConferenceInternational Conference on Neural Computation Theory and Applications, NCTA 2011
Country/TerritoryFrance
CityParis
Period24/10/1126/10/11

Keywords

  • Aircraft
  • Identification
  • Map
  • Noise
  • Real time
  • Sound

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