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

doi:10.11947/j.AGCS.2024.20230290

Abstract

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

CLC Number:

P228.4

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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