Analyses for Cockpit Voice Recorder's Sound Information Based on Windowed Fourier Transform

Analyses for Cockpit Voice Recorder's Sound Information Based on Windowed Fourier Transform

Five typical flight information are recorded by cockpit voice recorder (CVR), such as left engine failure and landing gear actuation; then analyses are carried out through filtering, A/D transform, Gold-wave audio soft and windowed Fourier transform(WFT). The analysis result is identical with the th...

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Veröffentlicht in:Shànghăi jiāotōng dàxué xuébào 2006-08, Vol.40 (8), p.1373-1375
Hauptverfasser: Cheng, Dao-Lai, Yi, Chui-Jie, Zhong, Min-Zhu, Guo, Jian-Xiang, Yang, Lin
Format: Artikel
Sprache:chi
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Zusammenfassung:Five typical flight information are recorded by cockpit voice recorder (CVR), such as left engine failure and landing gear actuation; then analyses are carried out through filtering, A/D transform, Gold-wave audio soft and windowed Fourier transform(WFT). The analysis result is identical with the theory calculation value. A practicable analysis method for simple CVR's sound information is put forward.
ISSN:1006-2467