Observability analysis and enhancement of radome aberration estimation with line-of-sight angle-only measurement

This paper deals with the observability analysis and enhancement of target state variables and radome aberration estimation only with line-of-sight (LOS) angle measurement. The local observability conditions at an arbitrary time are derived, and a new maneuver algorithm, revised adaptive intermittent maneuver (RAIM), is introduced to enhance the estimation performance of the system. Simulations are conducted to verify the observability conditions and analyze the performance and characteristics of RAIM.