A new technique is introduced capable of increasing the number of transform points attainable by a chirp-Fourier-transform (CFT) unit. This result is achieved by sequentially analyzing a number of input adjacent time segments and in recombining the output transform blocks, after previous multiplications by proper weight factors. An hybrid analog/digital CFT architecture, where the required processing is digitally implemented, is described. The capability of improving frequency resolution and/or widening the analyzed bandwidth is demonstrated. Application to frequency analysis of signals of unknown timing is also discussed.

A technique for increasing the transform size of SAW Chirp Transform Processors / P. TORTOLI; G. MANES; C. ATZENI. - STAMPA. - (1980), pp. 25-29. (Intervento presentato al convegno 1980 IEEE Ultrasonics Symposium tenutosi a Boston, MA, USA nel 5-7 Novembre 1980).

A technique for increasing the transform size of SAW Chirp Transform Processors

TORTOLI, PIERO;MANES, GIANFRANCO;ATZENI, CARLO
1980

Abstract

A new technique is introduced capable of increasing the number of transform points attainable by a chirp-Fourier-transform (CFT) unit. This result is achieved by sequentially analyzing a number of input adjacent time segments and in recombining the output transform blocks, after previous multiplications by proper weight factors. An hybrid analog/digital CFT architecture, where the required processing is digitally implemented, is described. The capability of improving frequency resolution and/or widening the analyzed bandwidth is demonstrated. Application to frequency analysis of signals of unknown timing is also discussed.
1980
1980 IEEE Ultrasonics Symposium Proceedings
1980 IEEE Ultrasonics Symposium
Boston, MA, USA
5-7 Novembre 1980
P. TORTOLI; G. MANES; C. ATZENI
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/320423
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