| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: invention can be used when calibrating radar stations from the effective radar cross-section (ERC) value. The disclosed method involves launching a booster rocket (BR) with a reference reflector (RR), irradiating the reflector with radar signals, receiving and measuring the amplitude of the reflected signals. As an ERC reference, an angle reflector (AR) is transported to an altitude higher than 100 km, said AR consisting of two flat radar-reflecting half-discs turned at an angle ranging from (90-?)° to (90+?)°, where ? is determined from the ratio 0<?<18?/a, ? being the wavelength of the calibrated radar station. Before launching, the AR is put into a guiding container, while aligning the longitudinal axis of the container with the bisector of the angle between faces of the AR. Before separating the AR from the BR, the last stage of the BR with the container is positioned by the BR control system such that the longitudinal axis of the container is directed along the line of sight of the radar station. The AR is separated from the BR on the line of sight of the radar station such that the main lobe of the scattering indicatrix of the AR is directed towards the radar station, and its maximum coincides with the line of sight of the radar station. The AR is also spun around an axis which coincides with the bisector of the angle between its faces.EFFECT: high accuracy of calibrating a radar station by eliminating errors caused by deviation of the maximum of the ERC of the RR from the line of sight of the radar station.13 cl, 21 dwg |
