民航多点定位系统基站布局优化

针对民航机场场面监视领域多点定位系统固定形状的基站布局方式造成进出场飞机定位精度低的问题,建立监视区域内基站布局问题的数学模型。以GDOP数值工具为定位精度评判标准,利用免疫寻优算法计算得到最优的基站布局方案;将此布置基站方案与星形、T形布置基站方式进行图形和数据的对比,同时又在此布置基站方案下改变主站位置来进行数据对比。仿真结果和对比数据表明免疫寻优算法布置基站的最优性且可以显著提高飞机定位精度。

OPTIMIZATION OF BASE STATION LAYOUT OF CIVIL AVIATION MULTILATERATION POSITIONING SYSTEM

In the field of civil aviation airport scene monitoring,the layout of base station with fixed shape of multi-point positioning system causes the low positioning accuracy of incoming and outgoing aircraft.In this paper,a mathematical model of base station layout in monitoring area was established.Then,the GDOP numerical tool was used to evaluate the positioning accuracy,and the immune optimization algorithm was used to calculate the optimal layout of the base station.Finally,the base station layout scheme was compared with the star-shaped and t-shaped base station layout scheme in terms of graph and data,and at the same time,the main station location was changed under the base station layout scheme for data comparison.The simulation results and the comparison data show that the immune optimization algorithm can optimize the base station layout and significantly improve the aircraft positioning accuracy.