This paper presents the design of an ultra-low energy, rakeness-based compressed sensing (CS) system that utilizes time-mode (TM) signal processing (TMSP). To realize TM CS operation, the presented implementation makes use of monostable multivibrator based analog-to-time converters, fixed-width pulse generators, basic digital gates and an asynchronous time-to-digital converter. The TM CS system was designed in a standard 0.18 μm IC process and operates from a supply voltage of 0.6V. The system is designed to accommodate data from 128 individual sensors and outputs 9-bit digital words with an average reconstruction SNR of 35.31 dB, a compression ratio of 3.2, with an energy dissipation per channel per measurement vector of 0.621 pJ at a rate of 2.23 k measurement vectors per second.

An energy-efficient multi-sensor compressed sensing system employing time-mode signal processing techniques / Akgun, O. C.; Mangia, M.; Pareschi, F.; Rovatti, R.; Setti, G.; Serdijn, W. A.. - STAMPA. - 2019:(2019), pp. 1-5. (Intervento presentato al convegno 2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 tenutosi a Sapporo (Japan) nel May 26-29, 2019) [10.1109/ISCAS.2019.8702667].

An energy-efficient multi-sensor compressed sensing system employing time-mode signal processing techniques

Pareschi F.;Setti G.;
2019

Abstract

This paper presents the design of an ultra-low energy, rakeness-based compressed sensing (CS) system that utilizes time-mode (TM) signal processing (TMSP). To realize TM CS operation, the presented implementation makes use of monostable multivibrator based analog-to-time converters, fixed-width pulse generators, basic digital gates and an asynchronous time-to-digital converter. The TM CS system was designed in a standard 0.18 μm IC process and operates from a supply voltage of 0.6V. The system is designed to accommodate data from 128 individual sensors and outputs 9-bit digital words with an average reconstruction SNR of 35.31 dB, a compression ratio of 3.2, with an energy dissipation per channel per measurement vector of 0.621 pJ at a rate of 2.23 k measurement vectors per second.
2019
978-1-7281-0397-6
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2786385