浦东机场场面多点定位系统布站方案研究

Emplace Station Study about Surface Multi-point Positioning System of Pudong Airport

浦东机场拟采用多点定位系统替代现有场面监视系统,以避免现存的监视盲区、提高监视精度,其中对地面站点进行合理的部署是解决问题的关键。首先对影响多点定位系统定位精度的因素进行了分析,明确了影响多点定位监视精度的因素是几何精度因子和到达时间差(TDOA);然后结合浦东机场的机场布局特点,提出了采用倒三角型与星型布站构型相结合的布站方案;最后采用Matlab软件对上述布站方案进行仿真分析。仿真结果表明,上述布站方案不存在盲区,且所有区域的监视精度均能满足机场场面监视精度10m的要求。

In order to avoid the existing surveillance blind area and improve monitoring accuracy, Pudong Airport will be adopted to replace the existing scenes monitoring systems with multi-point positioning system. The key to this problem is rational to deploy the ground sites. Firstly, this paper analyzes the factors which influencing multi-point positioning system ＇ s positioning accuracy, obtains that the impact of multi-point positioning monitoring accuracy factor is GDOP and time difference of signal-based arrival （TDOA） , combines with the Pudong airport＇s layout features, and proposes one method which combines inverted triangle type with star type to develop a set of emplace station program. Finally, this station program is analyzed by using Matlab software. Simulation results show that there is no blind area in this station program, and monitor accuracy of all regions can meet the accuracy requirements of airport surface surveillance of 10m.