Real-time network analyser using dual analogue chirp transform

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Real-time network analyser using dual analogue chirp transform

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© The Institution of Electrical Engineers
Published

A dual implementation of analogue chirp transform is applied, for the first time, to the realisation of a network analyser capable of providing both amplitude and phase characteristics of the network transfer function. A chirp waveform excites the network and multiplies its response prior to processing in a surface-acoustic-wave chirp filter. This simple configuration ensures maximum energisation of the network and can allow bandwidths larger than the s.a.w. filter bandwidth to be analysed.

Inspec keywords: signal processing; acoustic surface wave devices; network analysers

Other keywords: dual analogue chirp transform; real time network analyser

Subjects: Signal processing and conditioning equipment and techniques; Signal processing and detection; Acoustic wave devices; Sensing devices and transducers; Other instrumentation and measurement systems; Information theory

References

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      • Atzeni, C., Manes, G., Masotti, L.: `Programmable signal processing by analog chirp-transformation using SAW devices', Proceedings of IEEE ultrasonics symposium, 1975, Los Angeles, p. 371–376.
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      • G.R. Nudd , O.W. Otto . Real-time Fourier analysis of spread spectrum signals using surface-wave-implemented chirp-Z transformation. IEEE Trans. , 54 - 56
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      • P.M. Grant , M.A. Jack , J.H. Collins . Network analyser employing surface-acoustic-wave discrete Fourier-transform processor. Electron. Lett. , 468 - 469
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