Characterization and comparison of envelope detectors for wake-up sensor interfaces at audio frequencies (CROSBI ID 691040)
Prilog sa skupa u zborniku | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Gazivoda, Marko ; Oletic, Dinko ; Bilas, Vedran
engleski
Characterization and comparison of envelope detectors for wake-up sensor interfaces at audio frequencies
Ultra-low-power analog hardware interfaces are becoming often used for continuous monitoring of weak, rarely and randomly occurring (spurious) acoustic events. Detection often requires interfaces for analog-domain time-frequency decomposition. These interfaces most often have a generic structure incorporating the same processing blocks, such as amplification, filtering, rectification, quantization and rudimentary classification. A critical processing block of the wake-up sensor interface is the envelope detector. In this paper we select four envelope detector topologies and show simulation and measurement results of their key parameters for their application in wake-up sensor interfaces. The selected envelope detectors must have short transient times (< 100 ms), used to rectify weak input signals (under 10 mV) in the lower audio frequency range and have a low power consumption to make them applicable in wake-up sensor interfaces.
passive envelope detector, switched inductor envelope detector, weak-signal envelope detection
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Podaci o prilogu
1-6.
2020.
objavljeno
10.1109/I2MTC43012.2020.9128810
Podaci o matičnoj publikaciji
Proceedings IEEE I2MTC 2020
Rapuano, Sergio ; Vasic, Darko ; Van Moer, Wendy
Piscataway (NJ): Institute of Electrical and Electronics Engineers (IEEE)
978-1-7281-4460-3
Podaci o skupu
2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC 2020)
predavanje
25.05.2020-29.05.2020
Dubrovnik, Hrvatska