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Astronomic Positioning and Orientation Method for Inhomogeneous Stellar Distributions.

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Title: Astronomic Positioning and Orientation Method for Inhomogeneous Stellar Distributions.
Authors: Liu, Zihao1 (AUTHOR) liuzihao0096@163.com, Li, Chonghui2 (AUTHOR) lichonghui6501@126.com, Zhang, Chao3 (AUTHOR) zhangchao1972@163.com, Tong, Shuai4 (AUTHOR) tongs05@163.com, Chen, Zhanglei5 (AUTHOR) chenzhanglei503@163.com, Yang, Yuan1 (AUTHOR) yangyuan00001@163.com, Gou, Wanxiang1 (AUTHOR) mengwa201611@163.com
Source: Journal of Surveying Engineering. Nov2023, Vol. 149 Issue 4, p1-8. 8p.
Abstract: Astronomic positioning and orientation can be used to obtain the astronomic longitude and latitude of a station and the astronomic azimuth of a ground target by observing stars. The results of the positioning and orientation depend not only on the instrument, environment, and observed star, but also on the solution method. Due to atmospheric refraction and instrumentation, there is a systematic error in the zenith distance of observed starlight during astronomic measurements using theodolites. The existing methods either do not consider the systematic error of the zenith distance, or do not fully utilize all directional information of the star. Therefore, existing methods cannot simultaneously achieve high-accuracy astronomic positioning and orientation, particularly in the case of poor stellar distribution. To address this problem, an astronomic positioning and orientation method that considers the zenith distance system error is proposed. The experimental results showed that the proposed method had a higher positioning accuracy than the traditional astronomic positioning method. In addition, the new method showed significant advantages in instances of inhomogeneous distribution such as cloudy or daytime observation. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Surveying Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 172023268
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  Data: Astronomic Positioning and Orientation Method for Inhomogeneous Stellar Distributions.
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  Data: <searchLink fieldCode="AR" term="%22Liu%2C+Zihao%22">Liu, Zihao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> liuzihao0096@163.com</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Chonghui%22">Li, Chonghui</searchLink><relatesTo>2</relatesTo> (AUTHOR)<i> lichonghui6501@126.com</i><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Chao%22">Zhang, Chao</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> zhangchao1972@163.com</i><br /><searchLink fieldCode="AR" term="%22Tong%2C+Shuai%22">Tong, Shuai</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> tongs05@163.com</i><br /><searchLink fieldCode="AR" term="%22Chen%2C+Zhanglei%22">Chen, Zhanglei</searchLink><relatesTo>5</relatesTo> (AUTHOR)<i> chenzhanglei503@163.com</i><br /><searchLink fieldCode="AR" term="%22Yang%2C+Yuan%22">Yang, Yuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yangyuan00001@163.com</i><br /><searchLink fieldCode="AR" term="%22Gou%2C+Wanxiang%22">Gou, Wanxiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> mengwa201611@163.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Surveying+Engineering%22">Journal of Surveying Engineering</searchLink>. Nov2023, Vol. 149 Issue 4, p1-8. 8p.
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Astronomic positioning and orientation can be used to obtain the astronomic longitude and latitude of a station and the astronomic azimuth of a ground target by observing stars. The results of the positioning and orientation depend not only on the instrument, environment, and observed star, but also on the solution method. Due to atmospheric refraction and instrumentation, there is a systematic error in the zenith distance of observed starlight during astronomic measurements using theodolites. The existing methods either do not consider the systematic error of the zenith distance, or do not fully utilize all directional information of the star. Therefore, existing methods cannot simultaneously achieve high-accuracy astronomic positioning and orientation, particularly in the case of poor stellar distribution. To address this problem, an astronomic positioning and orientation method that considers the zenith distance system error is proposed. The experimental results showed that the proposed method had a higher positioning accuracy than the traditional astronomic positioning method. In addition, the new method showed significant advantages in instances of inhomogeneous distribution such as cloudy or daytime observation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Surveying Engineering is the property of American Society of Civil Engineers and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1061/JSUED2.SUENG-1426
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      – Code: eng
        Text: English
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        PageCount: 8
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      – TitleFull: Astronomic Positioning and Orientation Method for Inhomogeneous Stellar Distributions.
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            NameFull: Liu, Zihao
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            NameFull: Li, Chonghui
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            NameFull: Zhang, Chao
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            NameFull: Tong, Shuai
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            NameFull: Chen, Zhanglei
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            NameFull: Yang, Yuan
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            NameFull: Gou, Wanxiang
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            – D: 01
              M: 11
              Text: Nov2023
              Type: published
              Y: 2023
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              Value: 149
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              Value: 4
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            – TitleFull: Journal of Surveying Engineering
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