基于无人机的雷达目标RCS标定方法研究

A Study on Radar Target RCS Calibration Method Based on UAV

雷达散射截面积(RCS)能够反映目标的形状、尺寸、姿态等重要信息,如何准确测量获得目标的RCS测量值,对目标识别研究具有重要意义。针对这一问题,文中在研究雷达标校问题的基础上,通过对雷达RCS测量技术需求分析,提出了采用无人机系挂龙伯球的方式开展RCS标定,避免了采用风筝和飞球方式时,由于外界环境引起的动态不确定性带来的标定误差。通过理论分析,进行了试验方案设计和具体型号雷达的测试验证。试验结果表明,该方法能够降低外界环境因素带来的不确定性影响,提高雷达RCS标定效率,满足雷达设备开展RCS标定需求,为后续雷达标校提供了技术支撑。

The radar cross section(RCS)can reflect important information such as shape,size,and attitude of the target.It is of great significance to the research of the target recognition by measuring the RCS of the target accurately.Based on the research of radar calibration,this paper was proposed to carry out RCS calibration by using unmanned aerial vehicle(UAV)system to hang Lumber Ball through the analysis of the requirements of radar RCS measurement.In this way,the calibration error caused by the external environment when using the kite or balloon method can be reduced.Through theoretical calculation,the experimental scheme was designed and the test was carried out on the specific radar.The final result shows that the method proposed in this paper can reduce the error caused by the external environment and improve the efficiency of radar RCS calibration.The method can meet the needs for radar RCS calibration and provide important support for radar calibration later.