Performance Analysis for Bearings-only Geolocation Based on Constellation of Satellites

With the technological developments of satellite manufacturing and rocket launching, the constellation of satellites is increasingly normal. Electronic reconnaissance using satellites group is easy to implement. Bearings-only geolocation is an important research subject in the electronic reconnaissance field. In this manuscript, we focus on the performance analysis of bearings-only geolocation based on constellation of satellites. The geolocation model is firstly established for the scenario of satellites group. Second, angles of arrival (AOAs) in measuring coordinate systems (m-system) for different satellites are established and transformed to the standard earth-centered earth-fixed (ECEF). Then, we derive the Cram ' er Rao lower bound (CRLB) for the geolocation precision with the effects of attitude error and position error of satellites. Finally, simulation results are provided to reveal the theoretical performance of bearings-only geolocation based on constellation of satellites.