测绘学报 ›› 2025, Vol. 54 ›› Issue (7): 1170-1177.doi: 10.11947/j.AGCS.2025.20250020

• 大地测量学与导航 • 上一篇    下一篇

GNSS伪三角高程测量方法

李建章1,2,3(), 闫浩文1,2,3(), 杨维芳1,2,3, 苏小宁1,2,3   

  1. 1.兰州交通大学测绘与地理信息学院,甘肃 兰州 730070
    2.地理国情监测技术应用国家地方联合工程研究中心,甘肃 兰州 730070
    3.甘肃省测绘科学与技术重点实验室,甘肃 兰州 730070
  • 收稿日期:2025-01-14 修回日期:2025-06-26 出版日期:2025-08-18 发布日期:2025-08-18
  • 通讯作者: 闫浩文 E-mail:lijianzhang@mail.lzjtu.cn;haowen2010@gmail.com
  • 作者简介:李建章(1974—),男,博士,副教授,研究方向为高速铁路控制网数据处理。E-mail:lijianzhang@mail.lzjtu.cn
  • 基金资助:
    国家自然科学基金(42361073)

GNSS pseudo trigonometric leveling method

Jianzhang LI1,2,3(), Haowen YAN1,2,3(), Weifang YANG1,2,3, Xiaoning SU1,2,3   

  1. 1.Faculty of Geomatics, Lanzhou Jiaotong University, Lanzhou 730070, China
    2.National-Local Joint Engineering Research Center of Technologies and Applications for National Geographic State Monitoring, Lanzhou 730070, China
    3.Key Laboratory of Science and Technology in Surveying & Mapping, Gansu Province, Lanzhou 730070, China
  • Received:2025-01-14 Revised:2025-06-26 Online:2025-08-18 Published:2025-08-18
  • Contact: Haowen YAN E-mail:lijianzhang@mail.lzjtu.cn;haowen2010@gmail.com
  • About author:LI Jianzhang (1974—), male, PhD, associate professor, majors in data processing of high speed railway control network. E-mail: lijianzhang@mail.lzjtu.cn
  • Supported by:
    The National Natural Science Foundation of China(42361073)

摘要:

针对传统全站仪三角高程测量精度低的问题,提出了一种GNSS伪三角高程测量方法。本文方法要求在测站周围布设一定数量的辅助点,利用精密水准仪与GNSS接收机建立测站天顶方向(铅垂线反方向)基线向量,并以GNSS基线向量代替传统的全站仪视线,通过向量点积公式获得目标点的天顶距,进而获得两点间三角高程测量值。GNSS伪三角高程测量不要求两点通视,没有大气折光的影响,特别适合跨越障碍物(江河、湖海、山谷等)的长距离高程传递。在长为3.8 km的水准路线上采用精密水准测量和GNSS伪三角高程往返测量进行了对比试验。试验结果表明,两种方法测量结果差异小于二等水准检测限差11.7 mm。

关键词: 伪三角高程测量, GNSS静态测量, 水准测量, 大气垂直折光

Abstract:

A GNSS pseudo trigonometric leveling method is proposed to address the issue of low accuracy in traditional total station trigonometric leveling. This method requires the deployment of a certain number of auxiliary points around the measurement station, the establishment of a zenith direction (opposite direction of vertical line) baseline vector using a precision level and GNSS receiver, and the replacement of the traditional total station line of sight with the GNSS baseline vector. The zenith distance of the target point is obtained through the vector dot product formula, and then the trigonometric leveling measurement value between two points is obtained. GNSS pseudo trigonometric leveling does not require two-point visibility and is not affected by atmospheric refraction, making it particularly suitable for long-distance elevation transmission across obstacles such as rivers, lakes, and valleys. A comparative experiment was conducted on a 3.8 km leveling route using precision leveling measurement and GNSS pseudo trigonometric leveling round-trip measurement. The experimental results showed that the difference between the two methods was less than the second-order leveling detection limit of 11.7 mm.

Key words: pseudo trigonometric leveling, GNSS static measurement, leveling, atmospheric vertical refraction

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