S.V. Fedorov - Dr. Sc. (Eng.), Head of Department, JSC V.Tikhomirov NIIP (Zhukovsky, Moscow region) S.V. Zorin - Head of Department, JSC V.Tikhomirov NIIP (Zhukovsky, Moscow region) D.Yu. Murinets - Head of Department, JSC V.Tikhomirov NIIP (Zhukovsky, Moscow region)

The article-s purpose is to describe structure features of several generations DSP systems and tasks redistribution tendency among components of DSP system. As digital computing technology progress digital part of DSP system gradual «approaching» to radar antenna take place. At the same time computers performance growth permits to implement more complex DSP algorithms. In addition to that algorithms complication results in tasks redistribution between special DSP computers and universal computers in DSP system. Tasks redistribution between special DSP computers and universal computers has an influence on choice of DSP system optimal structure.