海底控制点定位的半参数平差模型法

doi:10.11947/j.AGCS.2019.20180187

测绘学报 ›› 2019, Vol. 48 ›› Issue (1): 117-123.doi: 10.11947/j.AGCS.2019.20180187

海底控制点定位的半参数平差模型法

孙文舟¹, 殷晓冬¹, 暴景阳², 曾安敏³

1. 海军大连舰艇学院军事海洋与测绘系, 辽宁大连 116018;
2. 武汉大学测绘学院, 湖北武汉 430079;
3. 地理信息工程国家重点实验室, 陕西西安 710054

收稿日期:2018-04-27 修回日期:2018-09-10 出版日期:2019-01-20 发布日期:2019-01-31
作者简介:孙文舟(1991-),男,博士生,研究方向为海洋大地测量。E-mail:1519374228@qq.com
基金资助:
国家重点研发计划（2016YFB0501701）；国家863计划（2013AA122501）；国家自然科学基金（41474015；41874016）

Semi-parametric adjustment model methods for positioning of seafloor control point

SUN Wenzhou¹, YIN Xiaodong¹, BAO Jingyang², ZENG Anmin³

1. Department of Military Oceanography and Hydrography and Cartography, Dalian Naval Academy, Dalian 116018, China;
2. School of Geodesy and Geomatics, Wuhan University, Wuhan 430079, China;
3. State Key Laboratory of Geo-information Engineering, Xi'an 710054, China

Received:2018-04-27 Revised:2018-09-10 Online:2019-01-20 Published:2019-01-31
Supported by:
The National Key Research and Development Program of China(No. 2016YFB0501701);The National High-tech Research and Development Program of China (No. 2013AA122501);The National Natural Science Foundation of China (Nos. 41474015;41874016)

摘要/Abstract

摘要：

针对圆走航确定海底控制点三维绝对坐标存在垂直解精确度差的问题，本文提出了基于半参数平差模型处理测距系统误差的方法，首先分析了声速变化对测距误差的影响，其次在圆走航观测方程的基础上建立了水下控制点三维坐标解算的半参数平差模型，分别给出了观测时长为测距误差长周期项整数倍与非整数倍时的解算方法。仿真试验表明，当内波存在且观测时长不足测距误差长周期项的整数倍时，该方法相比于差分法和最小二乘法可明显提高水下控制点垂直解的精确度。

关键词: 半参数平差模型, 圆走航, 控制点坐标定位, 距离交会定位, 测距系统误差

Abstract:

This paper focuses on solving the problem of seafloor control point absolute positioning with low vertical accuracy based on the survey ship sailing circle. The method of dealing with the systematic error based on semi-parametric adjustment model was proposed. Firstly, the influence of sound speed change on ranging error is analyzed. Secondly, a semi-parametric adjustment model for determining three-dimensional coordinates of underwater control points was established. And respectively proposed solutions under two different conditions, the observation duration is an integral multiple or non-integer multiple of the long-period term of the ranging error. Simulation experiment results show that this method can obviously improve the accuracy of vertical solution of seafloor control point compared with difference technique and least square method when internal waves exist and observation duration is less than an integer multiple of the long-period term of the ranging error.

Key words: semi-parametric adjustment model, sailing circle, positioning of seafloor control point, intersection positioning model, systematic ranging error

中图分类号:

P229

孙文舟, 殷晓冬, 暴景阳, 曾安敏. 海底控制点定位的半参数平差模型法[J]. 测绘学报, 2019, 48(1): 117-123.

SUN Wenzhou, YIN Xiaodong, BAO Jingyang, ZENG Anmin. Semi-parametric adjustment model methods for positioning of seafloor control point[J]. Acta Geodaetica et Cartographica Sinica, 2019, 48(1): 117-123.

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海底控制点定位的半参数平差模型法

Semi-parametric adjustment model methods for positioning of seafloor control point

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