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.
Delta modulation; high order sliding mode control; digital sliding mode control; differential coding; analog to digital conversion; oversampling techniques
Files in This Item:
File Size Format  
controlEnigneeringPractice.pdf

Solo gestori archivio

Description: articolo
Type: versione editoriale
Size 1.51 MB
Format Adobe PDF
1.51 MB Adobe PDF & nbsp; View / Open   Request a copy

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Questionnaire and social

Share on:
Impostazioni cookie