Radar cross-sectional area measuring method based on super-resolution imaging

The invention discloses a radar cross-sectional area measuring method based on super-resolution imaging, and relates to the field of radar measurement; according to the method, high-resolution image information is obtained through super-resolution imaging and a high-precision RCS measurement value is obtained through near-field inversion; and in an array three-dimensional synthetic aperture radar system, the method mainly comprises the following steps: (1) initializing parameters; (2) acquiring echo data; (3) performing three-dimensional super-resolution imaging; (4) extracting a scattering center; (5) performing inversion to obtain a target far field RCS; and (6) calculating the true value of the target RCS. According to the method, the traditional resolution of three-dimensional imaging is obtained by using a virtual area array and emission bandwidth signal parameters, the sampling interval of a target scene is set according to requirements, super-resolution sampling is performed on an imaging scene to obta