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Open AccessArticle

Odd/Even Order Sampling Soft-Core Architecture Towards Mixed Signals Fourth Industrial Revolution (4IR) Applications

Faculty of Engineering and Built Environment, University of Johannesburg, Johannesburg 2092, South Africa
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Energies 2019, 12(23), 4567; https://doi.org/10.3390/en12234567
Received: 24 October 2019 / Revised: 13 November 2019 / Accepted: 21 November 2019 / Published: 29 November 2019
(This article belongs to the Special Issue Energy Systems in an Interconnected World)
Digitization is at the center of fourth industrial revolution (4IR) with previously analog systems being digitized through an analog-to-digital converter. In addition, 4IR applications such as fifth generation (5G) Cellular Networks Technology and Cognitive Electronic Warfare (EW) at some point interface digitally through an analog-to-digital converter. Efficient use of digital resources such as memory, largely depends on the signal sampling design of analog-to-digital converters. Existing even order sampling has been found to perform better than traditional sampling techniques. Research on the efficiency of a digital interface with a 4IR platform is still in its infancy. This paper presents a performance study of three sampling techniques: the proposed new and novel odd/even order sampling architecture, existing Mod-∆, and traditional 1st order delta-sigma, to address this. Step-size signal-to-noise (SNR), dynamic range, and sampling frequency are also studied. It was found that the proposed new and novel odd/even order sampling achieved an SNR performance of 6 dB in comparison to 18 dB for Mod-∆. Sampling frequency findings indicated that the proposed new and novel odd/even order sampling achieved a sampling frequency of 2 kHz in comparison to 8 kHz from a traditional 1st order sigma-delta. Dynamic range findings indicated that the proposed odd/even order sampling has achieved a dynamic range of 1.088 volts/ms in comparison to 1.185 volts/ms from a traditional 1st order sigma-delta. Findings have indicated that the proposed odd/even order sampling has superior SNR and sampling frequency performances, while the dynamic range is reduced by 8%. View Full-Text
Keywords: soft-core architecture; odd order sampling; even order sampling; analog to digital converter (ADC) soft-core architecture; odd order sampling; even order sampling; analog to digital converter (ADC)
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Mfana, M.; Hasan, A.N.; Ahmed, A. Odd/Even Order Sampling Soft-Core Architecture Towards Mixed Signals Fourth Industrial Revolution (4IR) Applications. Energies 2019, 12, 4567.

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