星源照射多基地雷达系统目标定位建模及精度分析OA北大核心CSTPCD

The satellite illumination multi-base radar system is composed by one satellite transmitting station and several receiving stations.The positioning accuracy of this radar system is higher than that of single satellite positioning.Because of the working sys-tem and configuration,the positioning accuracy of the radar system is affected by many factors.To clarify the factors affecting the positioning accuracy of the multi-base radar system,a typical radar system positioning model of one transmitting station and several receiving stations is presented.From the perspective of geometric dilution of precision(GDOP),the influence of different number of receiving stations on positioning accuracy are compared.It is found that the system efficiency is higher when the number of re-ceiving stations is 3 or 4.The positioning accuracy of the radar system corresponding to different detection configuration is studied,and it is found that the positioning accuracy of the system is the best under the Y-shape layout with the top angle of 120°.The vari-ation of positioning accuracy with target height is given.