A constrained iterative searching algorithm for space object passive tracking using single space-based optical sensor

For solving the problem in space object passive tracking with too short arcs acquired in space-based optical surveillance mission, the concepts of the attributable and the admissible region are introduced. And a triangulation subdivision and iterative searching method is put forward based on the triangulation node sorting by the cost function values. Simulation results indicate that this new method can converge rapidly and effectively, and the ill-condition in the space object tracking with too short arcs can also be avoided.