© The Institution of Electrical Engineers
The magnetic-delay-line (m.d.l.) processor uses a wire-electrode pattern to sense and process a signal recorded on a conventional magnetic tape. Two audio-frequency applications are described and demonstrated. The first produces the proportional bandwidth or constant-Q power spectrum of a signal and the second uses the chirp Z transform to provide a real-time power spectrum of an audio signal.
References
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1)
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T.W. Cole
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Pulse compression using the magnetic-delay-line processor.
Electron. Lett.
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499
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2)
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L.R. Rabiner ,
R.W. Schafer ,
C.M. Rader
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The chirp Z-transform and its applications.
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T.W. Cole
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The magnetic delay line processor: a new device.
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Cole, T.W.: `The magnetic delay line processor: review of a new device', paper 3.12, Conference digest of the national symposium IICA 75, July 1975, Institute of Instrumentation & Control, .
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5)
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Cole, T.W.: `Magnetic processing', PB8572/74, 1974, Australian Patent Application.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19750298
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