雷达组网减小多路径效应影响的探讨

Discussion on Reducing Multi-path Effect through Radar Net

讨论了天线方向图、波束指向、地(海)面反射特性、目标距离与高度等因素与伺服仰角误差控制信息的关系,分析了多路径效应对跟踪系统的影响。提出了基于多雷达组网减小多路径效应影响的方法,即采用平滑滤波与加权最小二乘算法相结合实现多源信息融合处理,并将多雷达融合后的仰角信息作为雷达网内俯仰支路的引导信息,利用该信息来减小多路径效应的影响,进而改善跟踪稳定性并提高低空目标仰角测量精度。实际应用验证了该方法的有效性。

Exploring the advantage of multiple information fusion of radar netting, smoothing filter for radar elevation information is used to reduce multipath effect and to carry out stable tracking. The multiple information is merged before sending to each radar＇s elevation channel ,so that the elevation of antenna can point to the real target and accuracy is improved.