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A signal-agnostic compressed sensing acquisition system for wireless and implantable sensors | IEEE Conference Publication | IEEE Xplore

A signal-agnostic compressed sensing acquisition system for wireless and implantable sensors


Abstract:

A signal-agnostic compressed sensing (CS) acquisition system is presented that addresses both the energy and telemetry bandwidth constraints of wireless sensors. The CS s...Show More

Abstract:

A signal-agnostic compressed sensing (CS) acquisition system is presented that addresses both the energy and telemetry bandwidth constraints of wireless sensors. The CS system enables continuous data acquisition and compression that are suitable for a variety of biophysical signals. A hardware efficient realization of the CS sampling demonstrates data compression up to 40x on an EEG signal while maintaining low perceptual loss in the reconstructed signal. The proposed system also simultaneously relaxes the noise and resolution constraints of the analog front end (AFE) and ADC by nearly an order of magnitude. The CS sampling hardware is implemented in a 90 nm CMOS process and consumes 1.9 μW at 0.6 V and 20 kS/s.
Date of Conference: 19-22 September 2010
Date Added to IEEE Xplore: 01 November 2010
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Conference Location: San Jose, CA, USA

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