POSSIBILITIES OF OBTAINING POLARIZATION SCATTERING MATRIXS FOR POLARIZATION OF RADAR ANTENNA FIELD
DOI:
https://doi.org/10.26906/SUNZ.2018.3.046Keywords:
radar target, polarization target scattering matrix, polarization measuring basis, characteristics of the measuring baseAbstract
The subject of the study in the article are the processes of controlling the polarization of the field of antenna systems for solving applied problems of radar target recognition. The goal is to obtain matrix expressions for recalculating the elements of the polarization scattering matrix (PMR) of a target from an arbitrary basis to an orthogonal one. The tasks: increase stealth and noise immunity of the radar; analyze the existing mathematical apparatus for obtaining matrix expressions; choose an effective algorithm for its application. The methods used are: mathematical optimization models, methods for solving matrix problems. The following results are obtained. Generally, matrix expressions are obtained that allow the recalculation of the target PMR elements measured in an arbitrary polarization basis of the radar, taking into account the characteristics of this basis, into a linear orthogonal basis. Conclusions. The scientific novelty of the obtained results consists in the following: matrix expressions are obtained that allow us to calculate the target PMR elements in the orthogonal polarization basis of the radar from the radar antenna fields, target PMR and characteristics of the polarization basis measured during the polarization control; when making calculations it is necessary to take into account possible errors in obtaining PMR elements in a given orthogonal polarization basis. These errors are due to the approximation of the units of different polarizations, to transmission and reception, to each other when controlling the polarization of the antennas.Downloads
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