论文标题

算术平均密度融合 - 第二部分:未标记和标记的RFS融合的统一推导

Arithmetic Average Density Fusion -- Part II: Unified Derivation for Unlabeled and Labeled RFS Fusion

论文作者

Li, Tiancheng

论文摘要

作为一种基本信息融合方法,在多传感器多目标跟踪的背景下,最近研究了各种随机有限的滤波器(RFS)滤波器融合的算术平均值(AA)融合。它并不是普通密度-AA融合到RFS分布的直接扩展,而是必须保留融合多目标密度的形式。在这项工作中,我们首先提出了一个统计概念,概率假设密度(PHD)一致性,并解释了如何通过PHD-AA融合可以实现它,并导致更准确,更强大的检测和对当前目标的定位。这既形成理论上的声音和技术意义上有意义的理由,用于执行滤波器间的PHD AA融合/共识,同时保留Fusing RFS滤波器的形式。然后,我们为大多数现有的未标记/标记的RFS过滤器得出并分析适当的AA融合公式,这些滤镜滤波器基于(标记)PHD-AA/一致性。这些推导在理论上是统一的,确切的,不需要近似,并且极大地启用了异质的未标记和标记的RFS密度融合,这在两篇随之而来的伴随论文中被分别证明。

As a fundamental information fusion approach, the arithmetic average (AA) fusion has recently been investigated for various random finite set (RFS) filter fusion in the context of multi-sensor multi-target tracking. It is not a straightforward extension of the ordinary density-AA fusion to the RFS distribution but has to preserve the form of the fusing multi-target density. In this work, we first propose a statistical concept, probability hypothesis density (PHD) consistency, and explain how it can be achieved by the PHD-AA fusion and lead to more accurate and robust detection and localization of the present targets. This forms a both theoretically sound and technically meaningful reason for performing inter-filter PHD AA-fusion/consensus, while preserving the form of the fusing RFS filter. Then, we derive and analyze the proper AA fusion formulations for most existing unlabeled/labeled RFS filters basing on the (labeled) PHD-AA/consistency. These derivations are theoretically unified, exact, need no approximation and greatly enable heterogenous unlabeled and labeled RFS density fusion which is separately demonstrated in two consequent companion papers.

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