摘要
针对多点定位系统实际运用中三站定位二维目标时定位曲线出现2个交点所产生的定位模糊问题,对三站定位曲线交点分布、精度几何弱化(GDOP,Geometric Dilution of Precision)因子与接收站布局间的关系进行数值分析。分析结果定性表明了三者间的关系,即接收站布局决定了定位曲线交点分布和GDOP分布,而定位曲线存在2个交点的区域与GDOP较大的区域基本一致。该结果可为实际运用中如何避免和处理三站多点定位模糊问题提供参考。
In practice,the two-dimensional TDOA source location in the case of three stations would encounter the ambiguity problem of dual solutions.The relationship of distributions of location curve intersections,GDOP and system layout is numerically analyzed,i.e.,the distributions of location curve intersections and GDOP are determined by the system layout,and the areas of two curve intersections are consistent with these of larger GDOP.These analysis result could serve as reference for avoiding or dealing with the ambiguity problem when multilateration is in application.
出处
《通信技术》
2012年第3期99-101,共3页
Communications Technology
基金
国家自然科学基金项目(批准号:61079006)
国家科技支撑计划项目(No.2011BAH24B06)
