ESTIMATION OF DISTALLY-LOCATED MULTIPORT NETWORK PARAMETERS USING MULTIPLE TWO-WIRE PROXIMAL MEASUREMENTS
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United States of America Patent
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Nov 24, 2022
app pub date -
May 19, 2022
filing date -
May 19, 2022
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Abstract
Accurately measuring bio-impedance is important for sensing properties of the body. Unfortunately, contact impedances can significantly degrade the accuracy of bio-impedance measurements. To address this issue, a method is provided for estimating an impedance matrix of parasitic network disposed between a first network and a second network of a bio-impedance measurement system, the method comprising determining an impedance matrix for the first network (ZMUX) based on an impedance matrix for the second network (ZLOAD) for at least one known load condition; fitting ZMUX values for ZLOAD for the at least one known load condition to estimate parameters of the impedance matrix of the intervening network.
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