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원자제어 저차원 전자계 연구단
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Real-time digital signal recovery for sensors and amplifiers with resonant characteristics

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Title
Real-time digital signal recovery for sensors and amplifiers with resonant characteristics
Author(s)
Jhinhwan Lee
Publication Date
2019-06
Journal
REVIEW OF SCIENTIFIC INSTRUMENTS, v.90, no.6, pp.065109 -
Publisher
AMER INST PHYSICS
Abstract
© 2019 Author(s).A digital signal processing (DSP)-based real-time signal recovery method suitable for a real-valued processing core is presented with a goal of compensating for all the anomalies due to the resonant behaviors of a linear low pass system with complex poles, such as geophone sensors and piezoelectric acceleration sensors. The recovery method is DC-accurate and effectively flattens the frequency response curves up to an adjustable frequency limit of ∼O(0.1/Ts) (Ts is the sampling period of the DSP system) which can be well beyond the conventional cut-off or resonance frequencies of the system. The method can also filter out transient signals due to arbitrary initial conditions and strong resonance. A detailed method to enhance the signal-to-noise ratio is proposed and tested with a set of time-domain and frequency-domain analyses, demonstrating its effectiveness in various parameter conditions
URI
https://pr.ibs.re.kr/handle/8788114/6464
ISSN
0034-6748
Appears in Collections:
Center for Artificial Low Dimensional Electronic Systems(원자제어 저차원 전자계 연구단) > Journal Papers (저널논문)
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2019_Review of Scientific Instruments_이진환_Real-time digital signal recovery for sensors and amplifiers with resonant characteristics.pdfDownload

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