Precise Adjustment of the Polar Axis of a Radio Telescope Antenna with a CCD Camera

Zhang Yan; Yan Yihua; Tan Chengming; Wang Wei; Huang Yafang

Astronomical Research and Technology > 2011 > 8(1): 15-20.

Zhang Yan, Yan Yihua, Tan Chengming, Wang Wei, Huang Yafang. Precise Adjustment of the Polar Axis of a Radio Telescope Antenna with a CCD Camera[J]. Astronomical Research and Technology, 2011, 8(1): 15-20.

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Precise Adjustment of the Polar Axis of a Radio Telescope Antenna with a CCD Camera

Zhang Yan^1,2,3,
Yan Yihua^2,3,
Tan Chengming^2,3,
Wang Wei^2,3,
Huang Yafang^1,2

1.
Graduate University of the Chinese Academy of Sciences, Beijing 100049, China
2.
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China
3.
Key Laboratory of Solar Activities, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100012, China

More Information

Received Date: January 03, 2010
Revised Date: February 08, 2010
Published Date: January 14, 2011

Graphical Abstract

Abstract

Abstract

This paper discusses a method to precisely adjust the polar axis of a radio telescope antenna with a CCD camera. The accuracy of the polar axis is crucial to imaging of a radio telescope, because pointing accuracy and image quality are related to the accuracy. The deviation angle of the polar axis can be precisely measured by a CCD. The measurement method can improve pointing accuracy and image quality. If a computer system is further used, the method can adjust multiple radio antennas at the same time, which increases the efficiency. The detection and correction of the deviation of the polar axis are timely with this method which ensures the improvement of data quality.
- Radio heliograph,
- Polar axis,
- CCD,
- Declination,
- Resolution

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References (5)

References

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