Observability: Range-only vs. Bearings-only Target Motion Analysis for a Leg-by-Leg Observer's Trajectory

Denis Pillon , Annie-Claude Perez-Pignol (1, 2) , Claude Jauffret (1, 2)

1 IM2NP - Institut des Matériaux, de Microélectronique et des Nanosciences de Provence
2 UTLN UFR ScT - Université de Toulon - UFR Sciences et Techniques

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 (CV) 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 bearings-only target motion analysis (BOTMA). We compare observability statuses in BOTMA and ROTMA in the paper.

Domaines: Micro et nanotechnologies/Microélectronique

Denis Pillon, Annie-Claude Perez-Pignol, Claude Jauffret. Observability: Range-only vs. Bearings-only Target Motion Analysis for a Leg-by-Leg Observer's Trajectory. IEEE Transactions on Aerospace and Electronic Systems, 2016, 52 (4), pp.1667-1678. ⟨10.1109/TAES.2016.150016⟩. ⟨hal-01435210⟩