Journal of Aeronautics & Aerospace Engineering

Journal of Aeronautics & Aerospace Engineering
Open Access

ISSN: 2168-9792

Dao Lai Cheng

Dao Lai Cheng
College of Urban Construction & Safety Engineering, Shanghai Institute of Technology,
Shanghai 201418

  • Research Article
    Cockpit Voice Analysis and Diagnostic Based on Conditional Rules & Fault Tree Analysis
    Author(s): Lin Zhang JI, Dao Lai Cheng, Chui Jie YI and Hong Yu YaoLin Zhang JI, Dao Lai Cheng, Chui Jie YI and Hong Yu Yao

    The characteristics of cockpit voices (sounds) recorded by Cockpit Voice Recorder (CVR) are key evidences in investigating accident causes for wrecked airplane. In order to analyzing and diagnosing wrecked airplane causes through cockpit voices in CVR, some researchers are made as followings in this paper: Firstly, some typical background sounds of cockpit voices, such as wind shear audio, near-earth audio warning, take-off form of audio warning, fire alarm and so on, are obtained and classified through listening and distinguishing by adobe audition audio software in laboratory. Then, the characteristics of these background sounds are extracted by signal analyses methods such as Fourier Transform (FT), Wavelet Transform (WT), and so on. Through these methods, the special characteristics are depurated, such as frequency value, spectral density, and frequency line numbers. Thirdly, as t.. Read More»
    DOI: 10.4172/2168-9792.1000104

    Abstract PDF

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