Subjects: Geosciences >> Space Physics submitted time 2016-05-13
Abstract： Determination of the relative states is the primary and important guarantee for normal operation of micro-satellite formation. With the miniaturization and low-cost spaceborne GPS receiver, the accuracy of orbit determination is low. In order to solve this problem, a method of correcting the formation relative orbit is given with only inter-satellite ranging information used. Inter-satellite ranging information is introduced and the extended Kalman filter is used to enhance the estimation accuracy of the relative orbit. The numerical simulation results show the validity of this approach.
Peer Review Status:
Awaiting Review
Subjects: Geosciences >> Space Physics submitted time 2016-05-13
Abstract： Formation initialization for elliptic reference orbit is studied in this paper, and three formation initialization strategies for planner formation configuration are derived. Firstly, two impulsive initialization strategy is derived using the state transition matrix. Secondly, three and four in-track impulsive initialization strategies are studied using the Gauss perturbation equations with the principle of minimal fuel consumption. Finally, numerical simulations of three initialization strategies are carried out, and the sequence quadratic programming and genetic algorithm are proposed to optimize the numerical results. Simulation results show that three in-track impulsive initialization strategy requires about 41% less velocity increment compared with two impulsive initialization strategy, and four in-track impulsive initialization strategy requires almost equal velocity increment compared with three in-track impulsive initialization strategy.
Peer Review Status:Awaiting Review
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