Method of satellite high-frequency attitude determination using compressive sampling
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(1. College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China;2. The PLA Unit 93147, Mianyang 621000, China)

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TN95

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    Abstract:

    High-frequency attitude vibration usually exceeds the measurement frequency range of spaceborne gyroscopes and star sensors,resulting in a decrease in the accuracy of satellite attitude determination. Thus,a method for high-frequency attitude determination based on the regular attitude sensors was proposed. The key idea is that the high-frequency attitude of the spacecraft was sparse in the frequency domain and can be recovered from the normal-sampling-rate measurements. In this method, the normal-sampling-rate attitude sensors and indirect Kalman filters were used to estimate attitude. The filters′ estimation results were merged, and the high-frequency attitude was recovered from the merged data using the compressive sampling algorithm. The effectiveness of the method was verified by simulation experiments.

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History
  • Received:November 08,2020
  • Revised:
  • Adopted:
  • Online: July 20,2022
  • Published: August 28,2022
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