6-21

UDC 621.396.67
DOI: 10.15350/2306-2819.2018.1.6

MULTIFREQUENCY MICROWAVE RADIOMETRIC METHOD OF DETECTION
AND CONTROL OF HAZARDOUS ATMOSPHERIC METEOROLOGICAL PHENOMENA, RESISTANT TO CHANGING MEASUREMENT CONDITIONS

I. N. Rostokin
Murom Institute (branch) of Vladimir State University
named after A.G. and N.G. Stoletovs,
Russian Federation, 602264, Murom, Orlovskaya Street, 23
E-mail: rostockin.ilya@yandex.ru

ABSTRACT

The development and substantiation of the application of the multifrequency microwave distant method, aimed at detection of convective clouds and the control of processes of formation and the development of dangerous and unfavorable atmospheric meteorological phenomena, connected with their evolution in conditions of nondeterministic changes of background radiation have been carried out. The main requirements and restriction on directional properties of the antenna system of the multifrequency microwave measuring system are presented. Basic mathematic relations, describing the way the method works, have been formulated. The main principles of formation of the antenna channel directivity pattern have been developed. Based on these principles, the type of the construction of a microwave dual-mode feed of the multifrequency radiometric system with the compensation of background radiation is offered. The development of the functional structure of the multifrequency microwave radiometric measuring complex has been carried out. Basic mathematical correlations, describing the operation of the multifrequency microwave radiometric system, implementing the offered method of the remote sensing of the cloudy atmosphere with the compensation of background radiation effect are presented. The results of experimental research of thermal radio radiation of the cloudy atmosphere in cold and warm periods of the year are presented. They have been obtained using the multifrequency microwave radiometric system with the compensation of background radiation and they are aimed at the experimental estimate of the efficiency of the distant study of clouds and precipitation intensity control by their thermal radio radiation, obtained at three wave lengths (7.5 cm, 3.2 cm, 1.35 cm) in conditions of changing background radiation. The integration of data of angular and frequency measurements with data of weather stations for the operational checkout of the correlation analysis of measurements results and meteorological parameters in the surface layer has been carried out. Correlation estimates of measurement data of the intensity of radio noise radiation of the atmosphere with precipitation by the three-band microwave radiometric system with precipitation intensity data, obtained from the weather station have been obtained. Theoretical backgrounds of the method of estimation of parametric dependencies of the space distribution of the rain intensity area according to multifrequency microwave radiometric measurements data have been formulated.

KEYWORDS

remote atmospheric sounding; multifrequency microwave radiometric systems; background radiation compensation; dual-mode antenna systems; hazardous and unfavorable meteorological phenomena; convective clouds; correlation analysis

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For citation: Rostokin I. N. Multifrequency Microwave Radiometric Method of Detection and Control of Hazardous Atmospheric Meteorological Phenomena, Resistant to Changing Measurement Conditions. Vestnik of Volga State University of Technology. Ser.: Radio Engineering and Infocommunication Systems. 2018. No 1 (37). Pp. 6-21. DOI: 10.15350/2306-2819.2018.1.6