METHOD AND DEVICE FOR SCANNING SPACE IN RADAR STATION Russian patent published in 2015 - IPC G01S13/00 

FIELD: radio engineering, communication.

SUBSTANCE: method is carried out by using, to scan far and near operating zones of radar stations, two pulse sequences which are generated at an intermediate frequency, and after mixing said sequences with high-frequency sinusoidal signals and filtering, converting into probing signals, wherein far zone is scanned by adjusting the pulse-by-pulse operating frequency of probing pulses by varying the high frequency of sinusoidal signals from cycle to cycle, and the near zone is scanned at a constant operating frequency; the received reflected signal is then mixed with the high-frequency sinusoidal signal of its zone by conversion thereof to an intermediate frequency, followed by filtering and, after analogue-to-digital conversion, processing. A device which carries out the method consists of a main and a compensation antenna, two signal formers, two mixers, two sinusoidal signal generators, a solid-state transmitting device, main and compensation channel receivers, a sinusoidal signal switch, primary processing, display, secondary processing and interfacing devices, with corresponding links.

EFFECT: improved radar efficiency with fluctuation of the radar cross-section of detected objects, as well as in conditions of frequency-targeted active jamming in the far operating zone while maintaining the quality of suppressing interfering signals reflected from local objects in the near operating zone of radar stations.

2 cl, 1 dwg