V.P. Fedosov – Dr.Sc.(Eng.), Professor, Department of radio engineering theory, 

Radio Engineering Systems and Management Institute of SFU (Taganrog)

E-mail: vpfedosov@sfedu.ru, vpfed@mail.ru

D.G. Kovtun – Post-graduate Student, Department of radio engineering theory, 

Radio Engineering Systems and Management Institute of SFU (Taganrog) E-mail: dan-kav@ya.ru

Increasing the resolution of radar objects in a dense group to determine their numbers is of great importance in modern conditions. The article proposes a modified algorithm for constructing a range-Doppler portrait of a group target based on a well-known algorithm (iterative adaptive algorithm). The model of an accelerating target is considered. The proposed algorithm allows to identify an accelerating targets and targets with a constant speed, get various distance-Doppler portraits. Simulation is proposed for the algorithm, a qualitative difference is shown between the base and modified algorithm, the root-mean-square deviation of the Doppler frequency of objects in the group is estimated.

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