Transactions of the Society of Instrument and Control Engineers
Online ISSN : 1883-8189
Print ISSN : 0453-4654
ISSN-L : 0453-4654
Anti-aliasing Effect of the Random Fluctuation of Sampling Frequency
Hiroki YAMAMOTONobuharu AOSHIMA
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2000 Volume 36 Issue 4 Pages 313-318

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Abstract
This paper describes the anti-aliasing effect of the random fluctuation of sampling frequency. The purpose of this study is to present a basis for the application. We analysed the effect of the random fluctuation of the sampling instance of AD convertion, and explained mathematically the effect of reducing the ailiasing. Then, an example of numerical experiments was described to show the usefulness of this method. Those results indicated that our method has the effect like as anti-aliasing filter. This effect may have advantage in case of appling compact devices with simple hardware. It would be especially useful to the system with multi sampling rate mechanism, since retarding the timing of AD convertion is only required to change software and it requires no analog circuit before the AD converter.
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