Choice of number, structure and placement of compensation modules in the radar with planar PAA

Abstract

The paper addresses adaptive systems for noise jamming protection of the radar with a planar phased array antenna (PAA). Basing on results of mathematical simulation, the number of compensation channels formed of modules of a 10,000-element planar square PAA containing 625 (400; 100) modules of the size 4×4 (5×5; 10×10) is substantiated. Their arrangement and a structure of a system of the channels, either in the presence of Taylor (or Hamming) weighting of output signals of the modules (or elements) or in its absence, for effective extracting of signals embedded in noise jamming is studied. A necessary degree of the increase in the number of such channels in the presence of non-identities is estimated.