Systematic errors of distance measurement when docking spacecraft.

What is it about?

In the process of performing a number of missions, it is necessary to carry out the docking of spacecraft. To control the docking process, it is necessary to measure the relative position of spacecraft. Errors occur in the measurement process, which can be both random and systematic. An unpleasant feature of systematic errors is that they do not decrease with averaging. The article is devoted to the assessment of systematic errors in distances measurement. The evaluation has a low computational complexity and is suitable for real-time implementation on-board of the spacecraft.

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Why is it important?

Errors in distance measurements make it difficult to control the process of spacecraft docking. Filtering the measurement results reduces random measurement errors, but does not reduce systematic errors. If there are no other distance meters (laser scanners), then there is a need to improve the accuracy of distance measurements by the television docking system.

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