顾及边界入射信号的多模水汽层析方法

doi:10.11947/j.AGCS.2020.20190113

测绘学报 ›› 2020, Vol. 49 ›› Issue (5): 557-568.doi: 10.11947/j.AGCS.2020.20190113

顾及边界入射信号的多模水汽层析方法

胡鹏, 黄观文, 张勤, 燕兴元, 李哲

长安大学地质工程与测绘学院, 陕西西安 710054

收稿日期:2019-04-11 修回日期:2020-01-05 发布日期:2020-05-23
通讯作者: 黄观文 E-mail:huang830928@163.com
作者简介:胡鹏(1994-),男,硕士,研究方向为GNSS数据处理与GNSS气象学。E-mail:974648161@qq.com
基金资助:
国家重点研发计划（2018YFC1505102）；国家自然科学基金（41774025；41731066）；陕西省技术创新引导专项（2018XNCGG05）；中央高校科研业务费专项（CHD300102269305）；二代导航重大专项（GFZX0301040308）

A multi-GNSS water vapor tomography method considering boundary incident signals

HU Peng, HUANG Guanwen, ZHANG Qin, YAN Xingyuan, LI Zhe

College of Geological Engineering and Geomatics, Chang'an University, Xi'an 710054, China

Received:2019-04-11 Revised:2020-01-05 Published:2020-05-23
Supported by:
The National Key Research and Development Program of China (No. 2018YFC1505102);The National Natural Science Foundation of China (Nos. 41774025;41731066);The Special Fund for Technological Innovation Guidance of Shaanxi Province (No. 2018XNCGG05);The Special Fund for Basic Scientific Research of Central Colleges (No. CHD300102269305);The Grand Projects of the BeiDou-2 System (No. GFZX0301040308)

摘要/Abstract

摘要： 利用GNSS三维水汽层析技术全天候地获取高时空采样率的水汽垂直分布信息，已成为GNSS气象学中一大研究热点。当前，基于单一导航系统的传统层析方法存在观测数据利用率低、观测分布不均等不足。本文设计和实现了一种顾及边界入射信号的多模水汽层析方法，采用香港CORS网观测数据和无线电探空产品进行精度验证，并详细分析边界入射信号和多模层顶信号的引入对层析水汽结果的改善程度。结果表明：相较于传统GPS层析方法，本文采用的融合两类多模层顶信号和边界入射信号的新水汽层析方法，兼备边界入射信号和多模层顶信号的优点，可得到更高精度和更可靠的三维水汽信息。

关键词: 三维水汽, 层析, GNSS气象学, 无线电探空数据, 边界入射信号

Abstract: Three-dimensional water vapor distribution information with high spatial and temporal sampling can be obtained all-weather by using GNSS water vapor tomography technology, which has become a major research hotspot in GNSS meteorology. At present, the traditional tomography method based on single navigation system has some shortcomings, such as low utilization rate of observation data and uneven distribution of observation. This paper designs and implements a multi-GNSS water vapor tomography method which takes into account the boundary incident signal. The accuracy of the method is verified by using the observation data of Hong Kong CORS network and radio sounding products. The improvement of the results of water vapor tomography by introducing boundary incident signal and multi-GNSS signal is analyzed in detail. The results show that compared with the traditional GPS tomography method, the proposed water vapor tomography method, which combines the advantages of boundary incident signal and multi-GNSS signal, can obtain more accurate and reliable three-dimensional water vapor information.

Key words: 3D water vapor, tomography, GNSS MET, radiosonde data, boundary incident signals

中图分类号:

P228

胡鹏, 黄观文, 张勤, 燕兴元, 李哲. 顾及边界入射信号的多模水汽层析方法[J]. 测绘学报, 2020, 49(5): 557-568.

HU Peng, HUANG Guanwen, ZHANG Qin, YAN Xingyuan, LI Zhe. A multi-GNSS water vapor tomography method considering boundary incident signals[J]. Acta Geodaetica et Cartographica Sinica, 2020, 49(5): 557-568.

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顾及边界入射信号的多模水汽层析方法

A multi-GNSS water vapor tomography method considering boundary incident signals

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