Observability: range-only vs. bearings-only target motion analysis for a leg-by-leg observer's trajectory

The aim of so-called range-only target motion analysis (ROTMA) is to estimate the trajectory of a target by a single platform collecting range-only measurements. We focus on the observability analysis when the target is in constant-velocity motion. More precisely, the observability conditions are es...

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Bibliographic Details
Published inIEEE transactions on aerospace and electronic systems Vol. 52; no. 4; pp. 1667 - 1678
Main Authors Pillon, Denis, Perez-Pignol, Annie-Claude, Jauffret, Claude
Format Journal Article
LanguageEnglish
Published Institute of Electrical and Electronics Engineers 2016
Subjects
Engineering Sciences
Signal and Image processing
radar
bearings only
Target motion analysis
electronic support measures
range only
sonar
tracking
observability
Fisher information matrix
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Summary:The aim of so-called range-only target motion analysis (ROTMA) is to estimate the trajectory of a target by a single platform collecting range-only measurements. We focus on the observability analysis when the target is in constant-velocity motion. More precisely, the observability conditions are established when the observer's trajectory is composed of one or several legs. We establish a link between the Fisher information matrix (FIM), and the observability, after having proven the similarity of this matrix with the FIM encountered in bearingsonly target motion analysis (BOTMA). We compare observability statuses in BOTMA and ROTMA all along the paper.
ISSN:0018-9251
DOI:10.1109/TAES.2016.150016