摘要
以多飞行器协同远距离精确定位为背景,针对高速飞行器协同被动时差定位误差大的特殊问题,根据被动时差定位原理,推导出瞬时定位误差传播特性,根据误差传播特性提出改善定位精度的基站最佳空间构型。理论分析和数学仿真结果表明,描述误差传播特性的模型正确,在允许条件下取最长基线,且飞行器以保持最佳空间构型的协同编队飞行时,对目标定位精度最高。
Based on the background of multi-vehicle cooperative long distance accurate positioning, regarding the big positioning error occurs during the multi-vehicle cooperation passive TDOA location, therule of instantaneous error propagation is derived from the principle of passive TDOA location. In addition, according to the characteritics of instantaneous error propagation, the optimized configuration of base stationis proposed for improving positioning precision. The result of mathematical simulation reveals that the model of instantaneous error propagation is right and the longest base line and highest target positioning precisioncan be obtained while flight vehicle keeps flying in cooperative formation of optimized configuration.
出处
《航天控制》
CSCD
北大核心
2016年第3期51-55,61,共6页
Aerospace Control
关键词
多飞行器协同
时差定位
误差传播
最佳构型
Multi-vehicle cooperation
TDOA location
Error propagation
Optimized configuration
