Kalman's method to improve accuracy of online 13С16O2 measurement in the exhaled human breath using tunable diode laser absorption spectroscopy 
Date: Jul 11, 2018
This study reports on the use of Kalman's method for filtering an experimental signal to improve the accuracy of a 13С16О2 measurement in the exhaled human breath using tunable diode laser absorption spectroscopy with a semiconductor diode laser tunable near to a wavelength of 2 µm. It is shown that Kalman's filtration allows a 5-fold increase in the detection accuracy of 13СО2.