A Cooperative Navigation Estimation Method in Distributed Satellite System
Bin Li · Journal of Astronautics · 2013
To solve the cooperative navigation problem for a cooperative target with distributed satellites,a cooperative navigation estimation method combined a front-end with a back-end is proposed.In the front-end,design is made by using an unscented Kalman filter modified based on the consensus algorithm.And in the back-end,design is made using a covariance intersection algorithm combined with a fast covariance intersection weighting method and an additive fusion method for non-additive parameters.Numerical simulation is done with the help of STK and MATLAB,and the validness of the proposed method is demonstrated.