MONOPULSE RADAR SYSTEM Russian patent published in 2002 - IPC

FIELD: radar systems, mainly radar systems with composite, in particular, phase- shift keyed signals, used on movable carriers and designed for detection and tracking by the monopulse method of signals from targets in the presence of reflections from ground features. SUBSTANCE: at processing of long-base phase-shift keyed signals from the quadrature outputs of the summary signal phase detectors it is offered to use adaptive amplitude signal quantization with a fine-tuning of quantization thresholds at a lock-on for tracking, measure the Doppler signal component by narrow-band Doppler filtration, and at a target tracking - to close the tracking circuits according to the Doppler signal component and range in the summary channel with the aid of narrow-band frequency filters, and to normalize the output quadrature components of the narrow-band target signal in the difference channel to the similar quadrature components in the summary channel, and to use the obtained estimate of angular error for the circuit of the target angle tracking. EFFECT: enhanced resolving power of target detection, accuracy and noise immunity of target tracking with respect to active and passive jammings at installation of the radar system on a movable carrier. 8 dwg