Research On Relative Navigation Simulation Of Moderate Or Far Distance Of Space Rendezvous And Docking

Space Rendezvous and Docking is the key technology on space depth exploitation. It is a very large, complex system, and simulation on the ground is very necessary. Navigation comprises long-range guidance and relative navigation of moderate or far distance. The former in modern aerospace exploration and development has been gradually grasped and developed maturely, relatively, the latter study develops slowly, though it is an important prerequisite for success of the follow-up Final Approach and Final Docking. So the study of the relative navigation of space rendezvous during moderate or far distance has important theoretical and practical significance.In order to design the semi-physical simulation system for relative navigation of space rendezvous during moderate or far distance, this paper provides a detailed analysis and makes lots of simulation. First of all, due to space long distance and small-scale simulation of on the ground does not match, then provides the theory of similarity, establishes the basis of simulation. And discusses the ground simulation equipment requirements dynamic range and simulation dynamic model; Secondly, the paper based on simulation of the real measurement of the ground sensor can not access the system, and make use of the combination of laserdistancemeter and a visual navigation camera to replace rendezvous lidar, and from functions, precision and real-time connection of reality and replacement makes explainment and simulation, then proves that the replacement is suitable; Thirdly, using approach from "space" to "ground", for the development the paper discusses system moving parameters of the ground semi-physical simulation system. Then divides real movement into Transfer of homing phase and Transfer between V-bar holding points, infers parameters such as speed and acceleration, re-uses the theory of similarity to transform the ground semi-physical simulation into the design of equipment reference, provides the reference for designing and building the ground semi-physical simulation system; Finally, the paper discusses physical simulation equipment to track simulator, target simulator and ground monitoring system, then designs the simulation experiments basin on simulation equipment and devices of relative navigation during moderate or far distance, provides a reference for subsequent researchers.