RADAR STATION WITH THE ACTIVE PHASED ANTENNA ARRAY CALIBRATION METHOD Russian patent published in 2018 - IPC G01S7/40 

FIELD: radar ranging and radio navigation.

SUBSTANCE: invention relates to the field of radar ranging and can be used for calibration of the radar ranging stations (RRS) with an active phased antenna array (APAA) with electronic scanning in two planes according to the radar cross-section (RCS) value. As the RCS standard transporting the spacecraft (SC) to the orbit around the Earth, which body is made in the form of a cube or a straight prism. On one of the cube or straight prism faces, there is a V-shaped groove or the V-shaped recess, in which the angular reflector (AR) is rigidly fixed with the faces from the two flat radio-reflecting plates, deployed at the fixed angle of α. Angle α between the AR faces is set in the certain range of degrees. In the course of the flight, the RRS with APAA coordinates, as well as the APAA beam electronic scanning angles in the elevation and azimuth planes limiting values, are transmitted from the ground control complex to the SC. With the help of the GLONASS and / or GPS navigation system receivers and on-board digital computing complex (BDCC) determining the SC center of mass current coordinates, SC current spatial orientation angles, the SC center of mass position relative to the calibrated RRS with APAA coordinates, and the associated SC coordinate system axes orientation relative to the calibrated RRS line of sight. At that, using the BDCC calculating and determining the AR angle bisector spatial position relative to the calibrated RRS with APAA line of sight and then, using the SC orientation system performing the AR angle bisector position alignment with the calibrated RRS line of sight. Using the SC orientation system maintaining the AR angle bisector alignment with the calibrated RRS with APAA line of sight.

EFFECT: increase in the RRS with APAA calibration by the RCS accuracy.

7 cl, 6 dwg