Power-spectral analysis using the magnetic-delay-line processor

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Power-spectral analysis using the magnetic-delay-line processor

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© The Institution of Electrical Engineers
Published

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.

Inspec keywords: magnetic recording; delay lines; data compression

Other keywords: audio frequency applications; magnetic delay line processor; power spectral analysis

Subjects: Magnetic recording; Television and video equipment, systems and applications

References

    1. 1)
      • T.W. Cole . Pulse compression using the magnetic-delay-line processor. Electron. Lett. , 498 - 499
    2. 2)
      • L.R. Rabiner , R.W. Schafer , C.M. Rader . The chirp Z-transform and its applications. Bell Syst. Tech. J.
    3. 3)
      • T.W. Cole . The magnetic delay line processor: a new device. J. Phys. E. , 200 - 202
    4. 4)
      • 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, .
    5. 5)
      • Cole, T.W.: `Magnetic processing', PB8572/74, 1974, Australian Patent Application.
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