Mixed-Domain Systems and Signal Processing Based on Input Decomposition
- 16 October 2006
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Circuits and Systems I: Regular Papers
- Vol. 53 (10), 2145-2156
- https://doi.org/10.1109/tcsi.2006.882822
Abstract
Using input decomposition as a starting point, a variety of new types of systems and signal processors, which mix together domains traditionally kept separate, are derived, and their properties are examined. In one of these systems, digital signals are processed in continuous time, thus avoiding sampling and consequent aliasing, while maintaining the advantages of digital implementations in terms of programmability and noise immunity. In another approach, digital bit waveforms are processed directly by conventional analog filters. In a third approach, a nonlinear input decomposition results in systems in which signals are processed with a compressed dynamic range; this is done in a way that avoids output transients that characterize other approaches to compression, and also avoids the need for precise nonlinearity control. Several other possibilities are discussed. In all cases, the resulting systems can be input-output linearKeywords
This publication has 19 references indexed in Scilit:
- A “Divide and Conquer” Technique for Implementing Wide Dynamic Range Continuous-Time FiltersIEEE Journal of Solid-State Circuits, 2004
- Continuous-time digital signal processingElectronics Letters, 2003
- A mixed-signal approach to high-performance low-power linear filtersIEEE Journal of Solid-State Circuits, 2001
- An analog VLSI chip with asynchronous interface for auditory feature extractionIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1998
- Noise in Gm-C filtersIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1998
- Externally linear, time-invariant systems and their application to companding signal processorsIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1997
- Analog-to-digital conversion via duty-cycle modulationIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1997
- A level-crossing sampling scheme for A/D conversionIEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, 1996
- Operations on delta-modulated signals and their application in the realization of digital filtersRadio and Electronic Engineer, 1978
- Asynchronous delta-modulation systemElectronics Letters, 1966