Lota, Jaswinder, Al-Janabi, Mohammed and Kale, Izzet (2012) Accurate stability prediction of one-bit higher-order delta-sigma (?-?) modulators for multiple-sinusoidal inputs. IET Circuits, Devices & Systems, 6 (2). pp. 71-78. ISSN 1751-858XFull text not available from this repository.
The present approaches on predicting stability of delta-sigma (?-?) modulators are mostly confined to DC inputs. This poses limitations as practical applications of ?-? modulators involve a wide range of signals other than DC such as multiple-sinusoidal inputs for speech modelling. In this study, a quasi-linear model for ?-? modulators with non-linear feedback control analysis is presented that accurately predicts stability of single-loop one-bit higher-order ?-? modulators for multiple sinusoids. Theoretical values are shown to match closely with the simulation results. The results of this study would significantly speed up the design and evaluation of higher-order single-loop ?-? modulators with increased dynamic ranges for various applications that require multiple-sinusoidal inputs or any general input composed of a finite number of sinusoidal components.
|Subjects:||University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)|
|Depositing User:||Rachel Wheelhouse|
|Date Deposited:||24 Apr 2012 10:51|
|Last Modified:||24 Apr 2012 10:51|
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