MONOPULSE DIRECTION FINDER Russian patent published in 1998 - IPC

FIELD: radiolocation. SUBSTANCE: monopulse direction finder has four-channel antenna, summary-difference converter and angle discriminator with outputs of azimuthal, elevation and quadrupole signals of errors. Two computers connected with signal inputs via module identifiers to outputs of azimuthal and elevation signals of errors and with their threshold inputs via module identifier and scaling device to output of quadrupole signal of error are inserted to increase accuracy and noise immunity of direction finder by reduction of dimensions of aperture of direction finding characteristic beyond limits of working range of angles. Outputs of both computers are connected via logic AND gate to controlling inputs of normally open keys placed in series with outputs of angle discriminator. EFFECT: increased accuracy and noise immunity of monopulse direction finder. 3 dwg