High-accuracy radar calibration based on ADS-B

A novel radar error calibration method is proposed to easier calibrate the high-accuracy radar, which is based on the dynamic correction of the ADS-B fixed error and the change of the target echo center. Firstly, the source, types and the characteristics under radar coordinate system of ADS-B position data error are analyzed. Secondly, a model of the change of aviation target echo center is established and analyzed. Finally, on the basis, the radar systematic errors are estimated through a dynamic joint correction is done to the difference of radar data and ADS-B data. This method can improve the precision and stability of the estimation of radar systematic error. Multiple batches measured data is used to test and verify the novel method, and also used to compare performance with other methods. The result indicated that this method effectively improved the precision and stability of the radar systematic error calibration, and the method is succeeded applying in radar calibration equipment.