Title :
A general approach to TMA observability from angle and frequency measurements
Author_Institution :
Forschungsgesellschaft fur Angewandte Natuurwissenschaften, Forschungsinstitut fur Funk und Mathematik, Wachtberg-Werthoven, Germany
Abstract :
The state-observability problem for passive target tracking by angle and/or frequency measurements is analyzed. The method used is independent of the target model and can be specialized to arbitrary models in a systematic way. As an example, the general Nth-order dynamics target model has been discussed. In this way the previously established necessary and sufficient observability conditions are rederived in a much simpler way and extended to more general cases.
Keywords :
direction-of-arrival estimation; frequency estimation; motion estimation; observability; state estimation; target tracking; Doppler-shifted emitter frequency; angle measurements; arbitrary models; compatible trajectories; equivalent uniqueness criterion; frequency measurements; general Nth-order dynamics target model; line-of-sight angles; moving observer; passive emitter state estimation; passive target tracking; state-observability problem; target motion analysis; target trajectories; Differential equations; Frequency measurement; Goniometers; Motion analysis; Nonlinear dynamical systems; Nonlinear equations; Observability; State estimation; Target tracking; Trajectory;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
