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SICE Journal of Control, Measurement, and System Integration
Vol. 4 (2011) No. 5 P 341-348

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http://doi.org/10.9746/jcmsi.4.341

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In this paper, we consider signal interpolation of discrete-time signals which are decimated nonuniformly. A conventional interpolation method is based on the sampling theorem, and the resulting system consists of an ideal filter with complex-valued coefficients. While the conventional method assumes band limitation of signals, we propose a new method by sampled-data H optimization. By this method, we can remove the band-limiting assumption and the optimal filter can be with real-valued coefficients. Moreover, we show that without band-limited assumption, there can be the optimal decimation patterns among ones with the same ratio. By examples, we show the effectiveness of our method.

Copyright © 2011 The Society of Instrument and Control Engineers

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