一种测定并置站垂线偏差的小网参数转换法
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1.信息工程大学地理空间信息学院郑州450001;2.西安测绘研究所西安710054;3.地理信息工程国家重点实验室西安710054;4.中国科学院上海天文台上海200030;5.中国科学院大学天文与空间科学学院北京100049;6.黔南民族师范学院物理与电子科学学院都匀558000;7.西安航光仪器厂西安710119; 8.中国科学院新疆天文台乌鲁木齐830011; 9.北京跟踪与通信技术研究所北京100094; 10.中国测绘科学研究院北京100039)

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国家自然科学基金项目(1703067、11873077、42074006)和探月工程3期测控系统关键技术研究项目资助


A Small Scale Control Network Parameters Transformation Method for Surveying Deflection of the Vertical for Co-located Stations
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1. Institute of Geospatial Information, Information Engineering University, Zhengzhou 450001;2. Xián Research Institute of Surveying and Mapping, Xián 710054;3. State Key Laboratory of Geo-information Engineering, Xián 710054;4. Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030;5. School of Astronomy and Space Science, University of Chinese Academy of Sciences, Beijing 100049;6. School of Physics and Electronics, Qiannan Normal University for Nationalities, Duyun 558000;7. Xián Hangguang Instrument Factory, Xián 710119; 8. Xinjiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi 830011; 9. Beijing Institute of Tracking and Telecommunications Technology, Beijing 100094; 10. Chinese Academy of Surveying and Mapping, Beijing 100039;

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    摘要:

    推导了传统全球卫星导航定位系统(GNSS)测定垂线偏差(Deflection of the Vertical, DOV)形式误差的表达式; 提出一种可用以解算并置站DOV的小网参数转换法. 利用乌鲁木齐南山多技术并置站控制网观测信息, 开展了算法验证, 并对该站内多个地点DOV开展了实测. 结果表明, 高精度的小网DOV仅由点位观测精度最高、覆盖面积最广的3个站点决定. 个别精度较差的点会为DOV的测定值带来较大的不确定性; 采用小网转换法所解算的DOV与实测值间的一致性分别为-2.3'±4.3' (子午分量)和0.2'±4.6' (卯酉分量); 小网转换求取DOV的方法在精度上与经典的GNSS水准方法相当, 但步骤更加简便. 鉴于多技术并置站会不定期地开展本地测量, 可利用该方法实现多技术并置站 DOV的零成本长期监测.

    Abstract:

    The expression of formal error of deflection of the vertical (DOV) surveyed by classical global navigation satellite system (GNSS) is derived. A small scale control network parameters transformation method for calculating DOV of co-located stations is proposed. Based on the observation data of the control network of Nanshan multi-technology co-located stations in Urumqi, the algorithm verification is carried out, and the DOV of several places in the station is surveyed. The results show that the high-precision DOV of the small scale control network is only determined by the three points with the highest surveying precision and the widest coverage area of the triangle. A few points with poor position precision will bring great uncertainty to the DOV value. The consistency between the DOV calculated by small scale control network parameters transformation method and the surveyed result is -2.3±'4.3' (north-south component) and 0.2'±4.6' (west-east component), respectively. Small scale control network transformation method is similar to the classical GNSS method for DOV in the aspect of precision, but the former is more convenient. Considering that local surveying are carried out in irregular intervals in those multi-technology co-located stations, a zero-cost and long-term DOV monitoring in multi-technology co-located stations can be realized by the method.

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马小辉,张志斌,孙中苗,米立功,雷鸣,张阿丽,王广利,王宏,谷守周.一种测定并置站垂线偏差的小网参数转换法[J].天文学报,2021,(2):75-86.

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  • 收稿日期:2020-06-27
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  • 在线发布日期: 2021-03-30
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