OBSERVABILITY CRITERIA FOR BEARINGS-ONLY TARGET MOTION ANALYSIS
OBSERVABILITY CRITERIA FOR BEARINGS-ONLY TARGET MOTION ANALYSIS
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DOI：
10.1109/taes.1981.309141
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发表时间：
1981-01-01
影响因子：
4.4
通讯作者：
AIDALA, VJ
中科院分区：
文献类型：
--
作者：
NARDONE, SC;AIDALA, VJ
仅轴承目标运动分析 (TMA) 的可观测性要求是通过求解三阶非线性微分方程严格建立的。开发了封闭式表达式，随后用于指定本船运动的必要和充分条件，以确保独特的跟踪解决方案。结果表明，对于某些类型的操纵，即使相关的方位率非零，估计过程仍然不可观察。在 TMA 可观测性的启发式讨论中，此类机动经常被忽视，这可能解释了一些关于可接受的本船运动特征的常见误解。
The observability requirements for bearings-only target motion analysis (TMA) are rigorously established by solving a third-order nonlinear differential equation. Closed form expressions are developed and subsequently used to specify necessary and sufficient conditions on own-ship motion that insure a uniquetracking solution. It is shown that for certain types of maneuvers the estimation process remains unobservable, even when the associated bearing rate is nonzero. Such maneuvers are frequently overlooked in heuristic discussions of TMA observability, which may account for some common misconceptions regarding the characteristics of acceptable own-ship motion.