Abstract: In this paper, it is described the research work of the geometric parameters calibration technology for RCS test system, including form parameters of radar reflector, the spatial position of equipments, the geometric parameters of scale object, and so on. A comprehensive calibration device for parameters of RCS test system is developed and applied. The value traceability system of the geometric parameters in RCS test system is initially established. It is laid a solid technical foundation for calibration of domestic RCS test system.

Key words: Radar Cross-Section (RCS), Compact antenna test range, Scale object, Calibration