标题： 多目标可观测性 显示英文标题

标题： Multi Target Observability

摘要： 本文中，我们主要关注多目标可观测性问题，重点研究多个目标的唯一状态估计准则。 我们通过使用单个观测者观察到的多个高阶动力学的方位角，推导出可观测性的必要且充分条件。 然后，通过分析模糊的目标轨迹并推导出条件，建立了一个替代的可观测性概念，该条件为多目标可观测性的 NECNDSUF（必要且充分）条件，考虑了三种类型的测量：仅多普勒测量、仅方位测量以及组合的多普勒和方位测量，这提供了可以提高目标可区分性、轨迹重建和整体跟踪精度的见解。 显示英文摘要

摘要： In this paper, we mainly focus on the problem of multi-target observability, focusing on the unique state estimation criteria for multiple targets. We derive the condition which is necessary as well as sufficient for observability using bearing angles with multiple higher-order dynamics observed by a single observer. We then establish an alternative notion of observability by analyzing ambiguous target trajectories and deriving the condition which is NECNDSUF (Nec. and Suff.) for multi-target observability, considering three types of measurements: Doppler-only, bearing-only, and combined Doppler and bearing measurements, which offers insights that can improve target distinguishability, trajectory reconstruction, and overall tracking accuracy.