RECEIVER WITH STABILIZED LEVEL OF FALSE ALARMS Russian patent published in 2004 - IPC

FIELD: radiolocation. SUBSTANCE: invention can be utilized in pulse radars to eliminate reception of echoes transmitted over side lobes of radiation pattern of antenna. In agreement with invention output of unit suppressing reception over side lobes of radiation pattern of antenna is connected to input of limiter, its controlled input is connected to output of former of controlling voltage that incorporates following units connected in series: nonlinear device, optimal filter, detector, noncoherent storage circuit, azimuth-range integrator, facility processing signals between scans, former of azimuthal strobes, two delay lines, buffer unit which output is connected to controlled input of unit suppressing reception over side lobes of radiation pattern of antenna and timer which controlling outputs are connected to controlled inputs of azimuth-range integrator, facility processing signals between scans, former of azimuthal strobes and delay line and input for connection of synchronizer of operation of radar. Main input of unit suppressing reception over side lobes of radiation pattern of antenna is connected to input of former of controlling voltage and is input of receiver. EFFECT: improved suppression of reception of echoes over side lobes of radiation pattern of antenna thanks to decreased sensitivity of reception of echoes over side lobes. 4 cl, 15 dwg