Delta modulation (Delta-M) via second-order sliding-mode control technique

Alessandro Pilloni
First
;
Mauro Franceschelli
Second
;
Alessandro Pisano;Elio Usai
2019

Abstract

In modern data acquisition and communication technologies, the differential coding scheme known as Delta Modulation (D-M) is being rediscovered as an efficient 1-bit analog-to-digital conversion and compression technique due to its simplicity in implementation, high resolution and minimal data throughput rate. In this paper it is proposed a second-order D-M scheme based on the second-order “suboptimal” sliding mode control technique. As compared to the traditional D-M scheme, based on the first-order sliding mode control paradigm, it yields better accuracy and noise-shaping properties as well as higher signal-to-noise ratio. Various dynamical features of the proposed scheme are investigated, both in continuous and discrete time domains, and the appropriate stability conditions are derived. Finally, numerical simulations are extensively discussed to corroborate the theoretical analysis.
Inglese
92
1
10
10
https://www.sciencedirect.com/science/article/pii/S0967066119301364
Esperti anonimi
internazionale
scientifica
Delta modulation; high order sliding mode control; digital sliding mode control; differential coding; analog to digital conversion; oversampling techniques
no
Pilloni, Alessandro; Franceschelli, Mauro; Pisano, Alessandro; Usai, Elio
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
4
reserved
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