UDC 621.37; 621.373.826; 535-1; 519.246.
METHODS OF LIGHT REFLECTIONS ANALYSIS DURING LASER SENSING OF ATMOSPHERE
V. G. Andrejev, Dr. Sc. (Tech.), full professor, RSREU, Ryazan, Russia;
orcid.org/0000-0003-3059-3532; This email address is being protected from spambots. You need JavaScript enabled to view it.
E. A. Zhirkov, student, RSREU, Ryazan, Russia;
orcid.org/0009-0002-9887-0567; This email address is being protected from spambots. You need JavaScript enabled to view it.
A modified method for analysing light reflections during laser atmosphere sensing is proposed and studied. The aim of the work is to increase the plausibility of time delay estimation of reflected light signal by introducing a multifactor detector model that takes into account the dynamics of changes in several parameters of random variable distribution law. The proposed modified method gives greater (if compared with known methods) probability of correct detection of reflected signal by taking into account the totality of its statistical character-istics. The indicators of speed and plausibility of the results for the considered methods of disorder detection in the process of light reflections are compared. Experimental studies have shown that by using the proposed modified method to search for atmospheric inhomogeneities, the probability of correct detection is achieved, two or more times higher than that of known methods with the same signal-to-noise ratio of 10 dB. The pro-posed modified method is efficient in the tasks of detecting the moment of decomposition at small (10..20 counts) sizes of sliding window (training sample)).
Key words: : : laser, lidar, hydrometeor, laser rangefinder, silithometer, random process, disorder, sliding window, estimation of statistical parameters, model experiment.