Aircraft flight parameter estimation based on passive acoustic techniques using the polynomial Wigner–Ville distribution

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Aircraft flight parameter estimation based on passive acoustic techniques using the polynomial Wigner–Ville distribution

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Title: Aircraft flight parameter estimation based on passive acoustic techniques using the polynomial Wigner–Ville distribution
Author: Reid, D.C; Zoubir, A.M; Boashash, B
Abstract: The acoustic signal from an overflying aircraft, as heard by a stationary observer, is used to estimate an aircraft’s constant height, ground speed, range, and acoustic frequency. Central to the success of this flight parameter estimation scheme is the need for an accurate estimate of the instantaneous frequency of the observed acoustic signal. In this paper, the polynomial Wigner–Ville distribution is used in this application as the instantaneous frequency estimator. Its performance and the issue of the optimal time domain window length are addressed.
Description: This paper shows that we can use the sound from an overflying aircraft to estimate the aircraft’s flight parameters with a passive acoustic approach. (Additional details can be found in the comprehensive book on Time-Frequency Signal Analysis and Processing (see http://www.elsevier.com/locate/isbn/0080443354). In addition, the most recent upgrade of the original software package that calculates Time-Frequency Distributions and Instantaneous Frequency estimators can be downloaded from the web site: www.time-frequency.net. This was the first software developed in the field, and it was first released publicly in 1987 at the 1st ISSPA conference held in Brisbane, Australia, and then continuously updated).
URI: http://hdl.handle.net/10576/10777
Date: 1997-07

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