METHOD AND DEVICE FOR ADAPTIVE SPATIAL FILTERING OF SIGNALS Russian patent published in 1999 - IPC

FIELD: adaptive antenna arrays. SUBSTANCE: method involves reception of signals at N points spaced apart, where N 2, calculation of weight coefficients, generation of first and second reference signals whose frequencies are respectively chosen from equations ω₁<(ω₀-Δω) and ω₂>(ω₀Δω),, where ω₀ and Δω - are carrier frequency and spectrum width of useful signal received, separation of each of them into N equal-amplitude components, shifting of each i-th component, where i = 1, 2 ... N, through preset phase, summing up of i-th signals received and i-th components of first and second reference signals, and weighed addition of signals shaped. Directivity pattern main lobe shaped in the process covers angular spectrum within which arrival of useful signal is expected. EFFECT: improved noise immunity in signal reception. 2 cl, 4 dwg, 2 tbl