Observability of target tracking with bearings-only measurements
Taek Lyul Song · IEEE Transactions on Aerospace and Electronic Systems · 1996
Observability requirements are obtained for three-dimensional maneuvering target tracking with bearings-only measurements. The approach taken here using pseudomeasurements is completely different from the previous work in this area in that it does not involve solutions of nonlinear differential equations resulting from complicated time differentiations and it can treat a more general class of target motions not restricted to N th-order target dynamics.