Transactions of Nanjing University of Aeronautics & Astronautics
Design and Ground Verification for Vision-Based Relative Navigation Systems of Microsatellites
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Abstract:
This paper presents the design and ground verification for vision-based relative navigation systems of microsatellites， which offers a comprehensive hardware design solution and a robust experimental verification methodology for practical implementation of vision-based navigation technology on the microsatellite platform. Firstly， a low power consumption， light weight， and high performance vision-based relative navigation optical sensor is designed. Subsequently， a set of ground verification system is designed for the hardware-in-the-loop testing of the vision-based relative navigation systems. Finally， the designed vision-based relative navigation optical sensor and the proposed angles-only navigation algorithms are tested on the ground verification system. The results verify that the optical simulator after geometrical calibration can meet the requirements of the hardware-in-the-loop testing of vision-based relative navigation systems. Based on experimental results， the relative position accuracy of the angles-only navigation filter at terminal time is increased by 25.5%， and the relative speed accuracy is increased by 31.3% compared with those of optical simulator before geometrical calibration.
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Project Supported:
This work was supported in part by the Doctoral Initiation Fund of Nanchang Hangkong University （No.EA202403107）， and Jiangxi Province Early Career Youth Science and Technology Talent Training Project （No.CK202403509）.
Clc Number:
V249.32
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