OPTIMAL DETECTION ALGORITHM IN A POLARIMETRIC RADAR SYSTEM 

Evgeniy A. Pafikov, Candidate of technical sciences, associate professor, associate professor of the sub-department of production and operation of ammunition, Branch of the Military Academy of Logistics named after Army General A.V. Khrulev in Penza (Military Town, Penza, Russia), E-mail: evgeniy_pafikov@mail.ru
Andrey V. Peteshov, Candidate of technical sciences, associate professor, head of the sub-department of radioelectronics, Military University of Radio Electronics (123 Lenina street, Cherepovets, Russia), E-mail: peteshov_76@mail.ru
Anton S. Ishkov, Candidate of technical sciences, associate professor, associate professor of the sub-department of radio engineering and radioelectronic systems, Penza State University (40 Krasnaya street, Penza, Russia), E-mail: asihkov@mail.ru 

Background. In polarization radar systems with synthetic aperture (SAR), in comparison with conventional ones that use the emission and reception of signals of a fixed polarization, an additional emission channel and three additional reception channels are organized. This significantly increases the amount of information about radar objects and expands the possibilities for improving the quality of target detection. The optimal polarimetric detector is introduced for an ideal situation where the characteristics of the interference are completely known. Such an algorithm provides potentially achievable target detection performance against a background of interference. In the general formulation, the task of detecting a target against a background of noise is formulated as a task of testing statistical hypotheses about the presence or absence of a target based on the observed signal implementation. Materials and methods. The article proposes to consider an algorithm for optimal detection in a polarimetric radar system, which provides the best ratio among many other algorithms between the quality of detection and the amount of statistical information required for this. Conduct research on the detection algorithm associated with the use of a whitening filter. Determine the optimal detection algorithm in a polarimetric radar system and evaluate its effectiveness. Results and conclusions. Thus, an algorithm has been proposed and, based on it, a detector using a polarimetric whitening filter (PBF), which provides almost the same target characteristics as an optimal polarimetric detector, and can provide the best ratio among many other algorithms between the quality of detection and the amount of statistical data required for this information. 

detection, polarization, filter, interference, algorithm 

Pafikov E.A., Peteshov A.V., Ishkov A.S. Optimal detection algorithm in a polarimetric radar system. Nadezhnost' i kachestvo slozhnykh sistem = Reliability and quality of complex systems. 2023;(4):88–94. (In Russ.). doi: 10.21685/2307-4205-2023-4-8