Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Modeling unavoidably non-identical measuring channels ALEKSEEV N.V. GELONKIN A.I. SOKOLOV Y.S. AKIMOVA I.M. This article describes an algorithmic program that includes three modes of bandpass filtering: the first – the ideal bandpass filtering with random transmission rate, and the second – the ideal bandpass filtering with a random delay, the third – bandpass filtering with a filter impulse response. Calculation of parameters and estimation of errors is made simultaneously on several groups of sensors. Just consider the formula error signal values​​, the formula for calculating the parameters of accuracy A, J, P; formula for calculating the autocorrelation function, the method of Blackman-Bales for calculating the spectra, the use of weighted Hamming-Bales and Hana to smooth spectra (frequency domain), inequality to determine the accuracy of the estimate of the spectrum. The test data show – error are not identical groups of sensors depends on the statistical characteristics of the channels and decreases with increasing the number of sensors in the group. Keywords: the filtering accuracy, the parameters of the signal, method, function, channel. Contacts: E-mail: gelonkin@yandex.ru Pp. 13-16.