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Chinese Journal of Space Science ›› 2020, Vol. 40 ›› Issue (6): 1084-1090.doi: 10.11728/cjss2020.06.1084

• Research Articles • Previous Articles    

Research on Image Simulation for Space-based Space Debris Surveillance

XIA Shengfu1, CHEN Junyu1, LEI Xiangxu1, SANG Jizhang1,2   

  1. 1 School of Geodesy and Geomatics, Wuhan University, Wuhan 430079;
    2 Collaborative Innovation Center for Geospatial Technology, Wuhan 430079
  • Received:2019-08-12 Revised:2020-01-31 Published:2020-12-09

Abstract: Space-Based Space Surveillance (SBSS) is an effective mean to complement ground-based system which results in better spatial and temporal coverage. However, the lack of SBSS tracking data has caused inconvenience to the development and validation of the system, algorithm and software. For this, simulation software for generating SBSS images has been developed. In this paper, based on the characteristics of SBSS images, the research of fundamental algorithms is conducted, the simulation process is designed, the example images are given, and the results are analyzed. The instantaneous inertial coordinate system is used in the software system to obtain the high-precision simulation image which conforms to the actual SBSS scenarios. Based on Tycho2 catalog, a fast catalog query method based on the index file was proposed to generate background stars. Simulated observations are generated based on multiple TLE datasets. Finally, we present some examples and analyze the trajectory characteristics of space debris and stars in the images. The simulation results show that the simulation system can obtain more realistic space-based optical images for space debris under different observation conditions and loads, which take accuracy and timeliness into account.

Key words: Space debris, Optical space image simulation, Tycho2 catalog, TLE

CLC Number: