EVALUATION OF CHARACTERISTIC PARAMETERS OF OPTO-ELECTRONIC DEVICES USED IN REMOTE SENSING SYSTEMS

Abstract

In the article under consideration, the main operating parameters characterizing opticalelectronic
devices and the features of the factors influencing them are investigated. From the indicators
under consideration, the functions of sensitivity, resolution, and noise transmission were
singled out, and theoretical issues of the relationship between the input parameters were analyzed.
In the study, the transition to non-linearity intended for the development of equipment carried out
according to a linear pattern causes many errors. The transition of the system to a nonlinear mode
should be determined depending on both internal and external factors and on the function in which
the system performs it. In the course of work, as the main internal factor, it is possible to show the
change in temperature and other parameters of the system associated with it, and as an external
factor, atmospheric change, which has great dynamism. To assess the formation and quantitative
change in the sensitivity of the resolution and noise signals of the system, the article analyzes some
auxiliary functions that affect the transfer function and determines the optimal values for different
systems operating in different modes. In different satellite systems, due to the difference in the
interaction of the signal with the atmosphere obtained in the optical range (ultraviolet, visible, and
infrared), the transfer function becomes complex. As a result, the signal-to-noise ratio changes
over a wide range. Based on the foregoing, it is shown that the main indicator characterizing the
system as a whole is a change in the output signal over time. Therefore, it is expedient to replace
the function of space and time, which characterizes the object under study in terms of the observation
area, with the function of the temporal output signal. According to the results of the study, for
one reason or another, the value of internal and external factors acting on the function in time and
space allows us to directly evaluate the temporal function of the output signal.