Performance evaluation of ocean altimetry based on BeiDou-3 satellite reflected signals

Xuezhi Sun

doi:10.1117/12.2625571

9 December 2021 Performance evaluation of ocean altimetry based on BeiDou-3 satellite reflected signals

Xuezhi Sun

Proceedings Volume 12129, International Conference on Environmental Remote Sensing and Big Data (ERSBD 2021); 121290G (2021) https://doi.org/10.1117/12.2625571
Event: 2021 International Conference on Environmental Remote Sensing and Big Data, 2021, Wuhan, China

Abstract

With the completion of the China BeiDou-3 satellite constellation, the available signal sources for GNSS-R ocean altimetry have been further enriched. At the same time, the BeiDou-3 satellites have adopted more superior signal structures, which provide the possibility to improve the GNSS-R ocean altimetric precision. To analyze the influence of the different signal structures of BeiDou-3 satellites on the GNSS-R ocean altimetric precision, this paper has carried out the following research. Firstly, the modulation modes and autocorrelation functions of the BeiDou-3 satellite signal are analyzed, and the principle of ocean altimetry is presented. Secondly, the reflected delay power waveforms corresponding to different signal structures are simulated. Thirdly, the ocean altimetric precision based on different signal structures is compared and analyzed by using simulated reflected waveforms. The results show that compared with the traditional GPS L1 band C/A code altimetry, the ocean altimetry based on the BeiDou-3 satellite signal will obtain higher precision.

Citation Download Citation

Xuezhi Sun "Performance evaluation of ocean altimetry based on BeiDou-3 satellite reflected signals", Proc. SPIE 12129, International Conference on Environmental Remote Sensing and Big Data (ERSBD 2021), 121290G (9 December 2021); https://doi.org/10.1117/12.2625571

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