Surface-wave parametric signal processing
- 30 December 1971
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 7 (26) , 764-766
- https://doi.org/10.1049/el:19710522
Abstract
The parametric interaction of surface-wave signals propagating in opposite directions on a lithium-niobate substrate has been used to obtain the crosscorrelation of digitally coded input signals. The output 4 cm interdigital transducer was separated from the substrate by a 2000 Å SiO2 layer to eliminate scattering into volume waves. Matched-filter responses for both amplitude-modulated and biphase Barker codes of up to 13 bits have been obtained.Keywords
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