M.A. Murzova – Post-graduate Student, Moscow Institute of Physics and Technology (State University); 

Engineer, PJSC «Radiofizika» (Moscow)

E-mail: mariya.trofimenko@phystech.edu

V.E. Farber – Dr.Sc.(Eng.), Professor, Head of Department, PJSC «Radiofizika» (Moscow);  Professor, Moscow Institute of Physics and Technology (State University) E-mail: vladeffar@mail.ru

In this paper, the features of algorithm that is designed to track the maneuvering objects are studied. These maneuvering objects are detected by a chirp radar. Usage of linear frequency modulated signals results in so-called range-Doppler coupling, which yields a displacement of measured position from a true range of moving objects. Besides that, an α-β filter develops a lag error in its estimates while tracking maneuvering objects. The variance of estimate does not accurately represent actual error. Therefore, an optimal filter parameters α and β, at which the track accuracy is improved, are derived. Also, the calculation procedure of lag errors is described.

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