Hardware Realization of Generalized Time-Frequency Distribution with Complex-Lag Argument
© Nikola Žarić et al. 2009
Received: 13 July 2009
Accepted: 2 December 2009
Published: 12 January 2010
A hardware implementation of the N th order complex-lag time-frequency distribution is proposed. The considered distribution provides an arbitrary high concentration for multicomponent signals with fast varying instantaneous frequency. Although the distribution form is quite complex, the proposed realization is very efficient and provides high-speed real-time processing. Further, it allows avoiding miscalculation errors that may appear in the numerical calculation of signal with complex-lag argument. The results of FPGAs (Field Programmable Gate Arrays) implementation are presented as well.
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