Observability Analysis for TDOA Passive Localization System
Observability in passive location and tracking system is an important problem. This paper investigates the observability of multi-station time difference measurements system. For a 2D plane N orders movement target, three algorithms, linear system theory, nonlinear system theory and algebraic equations are used to demonstrate the observability of multi-station time difference of arrivals (TDOA) passive location and tracking system. The minimum of observation station and observation number are obtained when the targets are observability.
X. J. Gu et al., "Observability Analysis for TDOA Passive Localization System", Applied Mechanics and Materials, Vols. 130-134, pp. 2670-2675, 2012