Title | ||
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Aircraft Classification and Acoustic Impact Estimation Based on Real-Time Take-off Noise Measurements |
Abstract | ||
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The acoustic impact of aircraft taking-off is an important subject for monitoring and research. It is very useful to analyze the type or class of aircraft that produces high level noises based on take-off characteristics. This paper presents a new method about aircraft classification and the acoustic impact estimation, in areas near an airport, based on real time noise measurement for each take-off. The noise measurements are made with sampling frequency of 50 ks/s (kilo samples per second) and 24-bit resolution analog-to-digital conversion, during 24 s. The aircraft identification is made through a model of two parallel feed-forward neural network combined with a weighted addition. In order to generate the inputs to the neural networks, the noise signal features were obtained from the auto-regressive model and the 1/12 octave analysis. The aircraft is grouped into categories or classes depending on the installed engine type. This system has 13 aircraft categories and an identification level above 80% 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 acoustic impact is presented by means of a noise map for each take-off and displays four layers related to four take-off time intervals. Based on International Organization for Standardization, each time interval is represented by an equivalent point sound source location through the estimation of time-difference-of-arrival of the acoustic wave from aircraft taking-off. |
Year | DOI | Venue |
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2013 | 10.1007/s11063-012-9258-5 | Neural Processing Letters |
Keywords | Field | DocType |
Recognition,Aircraft,Take-off noise,Measurement,Acoustic contamination | Noise (signal processing),Noise measurement,Ambient noise level,Sampling (signal processing),Artificial intelligence,Pattern recognition,Speech recognition,Noise map,Acoustics,Runway,Wide area multilateration,Acoustic wave,Mathematics | Journal |
Volume | Issue | ISSN |
38 | 2 | 1370-4621 |
Citations | PageRank | References |
3 | 0.50 | 4 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Luis Sánchez | 1 | 36 | 13.87 |
A. Pérez | 2 | 3 | 1.18 |
José Juan Carbajal Hernández | 3 | 26 | 9.48 |
Arturo Rojo Ruiz | 4 | 6 | 1.34 |