© The Institution of Electrical Engineers
Surface-acoustic-wave (SAW) spectrum analysers such as compressive receivers can be used to perform real-time, wideband, transform-domain correlation. A major practical difficulty in such systems is the design of a bilinear analogue multiplier with wide input and output bandwidths and good dynamic range. A simple circuit is presented for such a multiplier, and the circuit performance as a square-law detector and correlator is illustrated.
References
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M.A. Jack ,
P.M. Grant ,
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The theory, design and applications of surface acoustic wave Fourier transform processors.
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P.J. Hall ,
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Gerard, H.M., Otto, O.V.: `A programmable radar pulsecompression filter utilizing chirp transform correlation', Proc. IEEE ultrasonics symposium, 1976, p. 371–375.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_19820475
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