Research on Location Principle and Method for Stationary Target with Range-Only Measurements
Zhong Liu · Command Control & Simulation · 2009
Aimed at the target positioning under the condition of underwater network warfare, the observable conditions for range-only system are analyzed.When the target is stationary and the observer travels in straight-line movement, the range-only system is unable to observe.By comparing the range-only system with bearings-only system under the same condition, a conclusion that in general the former has weaker observability is acquired.A recursive algorithm for estimation is given.It has a brief form and can be performed without initial value.The simulation results demonstrate that the new algorithm has better performance in convergence rate, precision and stability.The prospect of new algorithm application is positive.