岸基条件下的星载GNSS-R干涉测高精度验证评估

doi:10.11947/j.AGCS.2024.20230290

摘要/Abstract

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。

关键词: GNSS-R, 海面高度, 干涉测高, 精度验证, 岸基试验

Abstract: The on-board GNSS-R interferometric altimetry technology utilizes wideband hybrid codes modulated on GNSS satellite 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 interferometric 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.

Key words: GNSS-R, sea surface height, interferometric altimetry, accuracy verification, on-shore tests

中图分类号:

P228.4

黄令勇, 李世忠, 夏俊明, 王海岩, 孙越强, 杨日新, 杜起飞, 黄志勇. 岸基条件下的星载GNSS-R干涉测高精度验证评估[J]. 测绘学报, 2024, 53(2): 239-251.

HUANG Lingyong, LI Shizhong, XIA Junming, WANG Haiyan, SUN Yueqiang, YANG Rixin, DU Qifei, HUANG Zhiyong. Accurate verification and evaluation of on-board GNSS-R interferometric altimetry under on-shore conditions[J]. Acta Geodaetica et Cartographica Sinica, 2024, 53(2): 239-251.

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