Accession Number : ADP001553

Title :   Application of SAW Convolvers and Correlators,


Personal Author(s) : Gautier,H.

Report Date : 1982

Pagination or Media Count : 14

Abstract : A number of Surface Acoustic Wave (SAW) devices are directly applicable to signal processing: are to be found among them the fixed finite impulse response filters, the spectrum (or Fourier) analyzers and the convolvers/correlators. These last devices can also be viewed as programmable filters and the presentation will only deal with this family of devices. We shall first briefly describe the major technologies available to build these devices, discuss their present status of development and compare their performances. This review will show that the piezoelectric convolver technology has reached the highest level. And two typical examples of application of this device will next be presented: they related to spread spectrum systems and radar mapping. In the former the analog processing capabilities of the convolver are directly employed; and in the latter example coupling to digital circuits is performed to extend the field of applications of the device and make hybrid processors.

Descriptors :   *Frequency, *Control, *Symposia, *Surface acoustic waves, *Correlators, Filters, Convolution, Signal processing, Transverse, Bandwidth, Frequency response, Surface acoustic waves, Synthetic aperture radar, Radar signals

Distribution Statement : APPROVED FOR PUBLIC RELEASE