TY - GEN
T1 - Improved auscultation with a stethoscope using model inversion for unknown input estimation
AU - Nelson, Garrett
AU - Rajamani, Rajesh
N1 - Publisher Copyright:
© 2016 American Automatic Control Council (AACC).
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2016/7/28
Y1 - 2016/7/28
N2 - This paper presents a method for improved auscultation with an electronic stethoscope by estimating and removing the effects of unknown disturbance inputs. By replacing the single transducer in a stethoscope with a dual piezo transducer assembly, it is shown that an inverse dynamic mapping can be used to relate the two measured signals to original directional inputs acting on the stethoscope. Specifically, model inversion is used to estimate and remove physician handling noise from chest sound signals. An experimental test platform which uses a vibration shaker to simulate the desired auscultation signal is used to experimentally demonstrate the feasibility of the dual-piezo stethoscope approach in improving auscultation.
AB - This paper presents a method for improved auscultation with an electronic stethoscope by estimating and removing the effects of unknown disturbance inputs. By replacing the single transducer in a stethoscope with a dual piezo transducer assembly, it is shown that an inverse dynamic mapping can be used to relate the two measured signals to original directional inputs acting on the stethoscope. Specifically, model inversion is used to estimate and remove physician handling noise from chest sound signals. An experimental test platform which uses a vibration shaker to simulate the desired auscultation signal is used to experimentally demonstrate the feasibility of the dual-piezo stethoscope approach in improving auscultation.
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U2 - 10.1109/ACC.2016.7525533
DO - 10.1109/ACC.2016.7525533
M3 - Conference contribution
AN - SCOPUS:84992028975
T3 - Proceedings of the American Control Conference
SP - 3970
EP - 3975
BT - 2016 American Control Conference, ACC 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2016 American Control Conference, ACC 2016
Y2 - 6 July 2016 through 8 July 2016
ER -