Research on sea surface altimetry model of airborne GNSS reflected signal

Zhang Yun; Zhang Yangyang; Meng Wanting; Yang Shuhu; Han Yanling

doi:10.3969/j.issn.0253-4193.2020.03.015

Volume 42 Issue 3

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Zhang Yun，Zhang Yangyang，Meng Wanting, et al. Research on sea surface altimetry model of airborne GNSS reflected signal[J]. Haiyang Xuebao，2020, 42(3)：149–156，doi:10.3969/j.issn.0253−4193.2020.03.015

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Research on sea surface altimetry model of airborne GNSS reflected signal

doi: 10.3969/j.issn.0253-4193.2020.03.015

1.
College of Information, Shanghai Ocean University, Shanghai 201306, China
2.
Shanghai Aerospace Electronic Technology Institute, Shanghai 201109, China

Received Date: 2019-02-22
Rev Recd Date: 2019-09-06

Available Online: 2020-11-18

Publish Date: 2020-03-25

Abstract

Abstract

Compared with shore-based GNSS-R technology, the airborne GNSS-R has the advantages of high spatial resolution, wide monitoring range, high-resolution monitoring of specific areas, and flexible height and azimuth adjustments. This paper mainly studies the airborne GNSS-R altimetry model, based on the shore-based GNSS-R code altimetry principle, corrects the atmospheric delay, antenna distance, etc., optimizes the airborne altimetry model, and uses the DTU10 global sea level average height and tide. The model verifies the accuracy of the onboard GNSS-R altimetry model. By analyzing the GNSS-R airborne data of the CSIC-IEEC in the Baltic Sea in Finland on November 11, 2011, the inversion of the experimental data at different elevation angles was successfully carried out, and the inversion of the sub-meter airborne sea surface height was successfully achieved. The conclusion that the elevation angle has a great influence on the accuracy of the altimetry results qualitatively analyzes the error range caused by the elevation angle. The results of this paper demonstrate the feasibility of sea level altimetry for airborne GNSS-R.
- GNSS-R,
- airborne experiment,
- sea surface altimetry,
- accuracy analysis

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References(28)

References

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