DEVICE FOR CALIBRATING SURFACE RADIOLOCATION MEASURING COMPLEXES AT SMALL POSITIONING ANGLES Russian patent published in 2006 - IPC G01S7/40 G01S13/00 

FIELD: radiolocation technologies, possible use for providing dynamic measurements of effective dispersion area of radiolocation targets on surface to air trajectory in millimeter, centimeter and decimeter wave length ranges.

SUBSTANCE: calibrating device contains attenuator, connected to radiolocation measuring complex to be calibrated, consisting of serially connected transmitting device, antenna switch, to first and second outputs of which, respectively, attenuator and receiving-transmitting antenna are connected, and a receiving device, to input and output of which, respectively, attenuator and analog-digital converter with registration device are connected, and also contains metallic three-faceted corner-type standard reflector, mounted in far location zone of radiolocation measuring complex, and is different, because it additionally contains metallic wedge-shaped screen positioned in the center of first Fresnel zone of transmitting-receiving antenna of radiolocation measuring complex, height, length and gap relatively to line "radiolocation measuring complex antenna - standard reflector" of which are determined on basis of condition for practical exclusion of influence on results of radiolocation measuring complex calibration of diffraction on screen and mirror reflection by under-spreading surface of working grounds of probing and radiolocation signals scattered by standard reflector, and rotation device, positioned on low-reflection tower and mechanically connected to standard reflector, making it possible to mount standard reflector on the tower serially at right angle to vertical plane between plane of its opening and line "radiolocation measuring complex antenna - standard reflector" and blunt angle α in this plane, determined on basis of appropriate mathematical formula.

EFFECT: increased calibration precision and expanded area of possible application of device for calibrating surface-based radiolocation measuring complexes at small positioning angles under conditions of multi-beam distribution of radiolocation signals.

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