测绘学报2024,Vol.53Issue(2) :239-251.DOI:10.11947/j.AGCS.2024.20230290

岸基条件下的星载GNSS-R干涉测高精度验证评估

Accurate verification and evaluation of on-board GNSS-R interferometric altimetry under on-shore conditions

黄令勇 李世忠 夏俊明 王海岩 孙越强 杨日新 杜起飞 黄志勇
测绘学报2024,Vol.53Issue(2) :239-251.DOI:10.11947/j.AGCS.2024.20230290

岸基条件下的星载GNSS-R干涉测高精度验证评估

Accurate verification and evaluation of on-board GNSS-R interferometric altimetry under on-shore conditions

黄令勇 1李世忠 2夏俊明 3王海岩 4孙越强 3杨日新 4杜起飞 3黄志勇2
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作者信息

  • 1. 智慧地球重点实验室,北京 100094;地理信息工程国家重点实验室,陕西西安 710054;中国科学院国家空间科学中心,北京 100190
  • 2. 智慧地球重点实验室,北京 100094;地理信息工程国家重点实验室,陕西西安 710054
  • 3. 中国科学院国家空间科学中心,北京 100190
  • 4. 地理信息工程国家重点实验室,陕西西安 710054
  • 折叠

摘要

星载GNSS-R干涉测高技术通过调制GNSS卫星信号的宽带混合码,可以实现高精度宽幅海面测高.为有效验证星载GNSS-R干涉测高性能,本文设计了基于岸基GNSS-R干涉测高结果,开展星载GNSS-R干涉测高精度等效评估的策略.评估结果表明,GNSS-R干涉测高与卫星导航系统信号体制及信号信噪比相关,星载GNSS-R干涉测高可实现分米级测高精度.本文的研究成果可为后续星载GNSS-R干涉测高工程实践提供技术参考和数据支持.

Abstract

The on-board GNSS-R interferometric altimetry technology utilizes wideband hybrid codes modulated on GNSS satel-lite signals to achieve high-precision wide-swath sea surface altimetry.In order to evaluate the performance of on-board GNSS-R interferometric altimetry,this article designs an accuracy evaluation strategy for on-board GNSS-R interferometric altimetry based on the results of on-shore GNSS-R interferometric altimetry.The evaluation results show that GNSS-R interferometric altimetry is related to the signal system and signal-to-noise ratio of satellite navigation systems.On-board GNSS-R interfero-metric altimetry can achieve centimeter-level altimetry accuracy.The research findings of this article provide technical reference and data support for the engineering practice of subsequent on-board GNSS-R interferometric altimetry technology.

关键词

GNSS-R/海面高度/干涉测高/精度验证/岸基试验

Key words

GNSS-R/sea surface height/interferometric altimetry/accuracy verification/on-shore tests

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出版年

2024
测绘学报
中国测绘学会

测绘学报

CSTPCDCSCD北大核心
影响因子:1.602
ISSN:1001-1595
参考文献量25
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