Estimation of antenna characteristics' influence on the accuracy of range determination in Fresnel zone by the phase nonlinear radar ranging method

摘要

The influence of the range-only radar antenna secondary characteristics on the accuracy of target range determination in the near zone is considered, as applied to the phase nonlinear range finder with spatial-time signal processing. It is shown that the limiting absolute error of nonlinear range finder is n-times less than that of regular linear one, when detecting the response to the subharmonic number n of the sounding signal. The recommendations for wideband antenna using for single-position nonlinear ranging are given.