TY - JOUR
T1 - Coherent detection stochastic resonance assisted biomagnetometer for measuring magnetocardiography at room temperature
AU - Liao, Zhiqiang
AU - Jin, Shixu
AU - Kuwahata, Akihiro
AU - Sekino, Masaki
AU - Tabata, Hitoshi
N1 - Publisher Copyright:
© 2021 The Japan Society of Applied Physics.
PY - 2021/9
Y1 - 2021/9
N2 - A method of magnetocardiography (MCG) measurement using an overdamped bistable model based stochastic resonance (SR) technique for advancing biomagnetic sensors is proposed. To determine the system parameters for SR, an evolutionary algorithm combined with the coherent detection (CD) method is applied. We acquire and process an animal MCG at room temperature, detected by a commercially available optically pumped magnetometer. A comparison with a lowpass filter and the traditional CD method verified the ability of the proposed method to obtain a higher signal-to-noise ratio and peak value of the MCG, whilst retaining sufficient dynamic information.
AB - A method of magnetocardiography (MCG) measurement using an overdamped bistable model based stochastic resonance (SR) technique for advancing biomagnetic sensors is proposed. To determine the system parameters for SR, an evolutionary algorithm combined with the coherent detection (CD) method is applied. We acquire and process an animal MCG at room temperature, detected by a commercially available optically pumped magnetometer. A comparison with a lowpass filter and the traditional CD method verified the ability of the proposed method to obtain a higher signal-to-noise ratio and peak value of the MCG, whilst retaining sufficient dynamic information.
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U2 - 10.35848/1882-0786/ac1de5
DO - 10.35848/1882-0786/ac1de5
M3 - Article
AN - SCOPUS:85114606928
SN - 1882-0778
VL - 14
JO - Applied Physics Express
JF - Applied Physics Express
IS - 9
M1 - 097001
ER -