Performance of GNSS-based altimetry using airborne experimental data

Kegen Yu; Chris Rizos; Andrew G. Dempster

doi:10.1109/GNSSR.2012.6408261

Performance of GNSS-based altimetry using airborne experimental data

Kegen Yu^*, Chris Rizos, Andrew G. Dempster

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution

6 Citations (Scopus)

Abstract

This paper focuses on sea surface height (SSH) estimation using GNSS direct and reflected signals observed via an airborne receiver. A power-ratio-based method is presented to compute the relative delay of the reflected signal, which is then used to estimate the SSH. The power ratio is defined as the ratio of the correlation power at the code phase over the peak correlation power. Preliminary results from processing airborne experimental data collected over duration of 1 minute demonstrate that the mean power ratios associated with four satellites are very similar. When such a single constant mean power ratio is used to estimate the relative delay and the SSH, the mean of the SSH estimation errors is 4.5cm and the error standard deviation (STD) is 1.08m in the presence of significant wave height of about 4 metres.

Original language	English
Title of host publication	GNSS+R 2012
Subtitle of host publication	2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-6
Number of pages	6
ISBN (Electronic)	9781467328852, 9781467328845
ISBN (Print)	9781467328838
DOIs	https://doi.org/10.1109/GNSSR.2012.6408261
Publication status	Published - 2012
Externally published	Yes
Event	2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity, GNSS+R 2012 - West Lafayette, IN, United States Duration: 10 Oct 2012 → 11 Oct 2012

Other

Other	2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity, GNSS+R 2012
Country/Territory	United States
City	West Lafayette, IN
Period	10/10/12 → 11/10/12

Keywords

airborne experimental data
correlation power ratio
GNSS direct and reflected signals
sea surface height estimation

Access to Document

10.1109/GNSSR.2012.6408261

Cite this

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title = "Performance of GNSS-based altimetry using airborne experimental data",

abstract = "This paper focuses on sea surface height (SSH) estimation using GNSS direct and reflected signals observed via an airborne receiver. A power-ratio-based method is presented to compute the relative delay of the reflected signal, which is then used to estimate the SSH. The power ratio is defined as the ratio of the correlation power at the code phase over the peak correlation power. Preliminary results from processing airborne experimental data collected over duration of 1 minute demonstrate that the mean power ratios associated with four satellites are very similar. When such a single constant mean power ratio is used to estimate the relative delay and the SSH, the mean of the SSH estimation errors is 4.5cm and the error standard deviation (STD) is 1.08m in the presence of significant wave height of about 4 metres.",

keywords = "airborne experimental data, correlation power ratio, GNSS direct and reflected signals, sea surface height estimation",

author = "Kegen Yu and Chris Rizos and Dempster, {Andrew G.}",

year = "2012",

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language = "English",

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pages = "1--6",

booktitle = "GNSS+R 2012",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity, GNSS+R 2012 ; Conference date: 10-10-2012 Through 11-10-2012",

}

Yu, K, Rizos, C & Dempster, AG 2012, Performance of GNSS-based altimetry using airborne experimental data. in GNSS+R 2012: 2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-6, 2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity, GNSS+R 2012, West Lafayette, IN, United States, 10/10/12. https://doi.org/10.1109/GNSSR.2012.6408261

Performance of GNSS-based altimetry using airborne experimental data. / Yu, Kegen; Rizos, Chris; Dempster, Andrew G.
GNSS+R 2012: 2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2012. p. 1-6.

Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution

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T1 - Performance of GNSS-based altimetry using airborne experimental data

AU - Yu, Kegen

AU - Rizos, Chris

AU - Dempster, Andrew G.

PY - 2012

Y1 - 2012

N2 - This paper focuses on sea surface height (SSH) estimation using GNSS direct and reflected signals observed via an airborne receiver. A power-ratio-based method is presented to compute the relative delay of the reflected signal, which is then used to estimate the SSH. The power ratio is defined as the ratio of the correlation power at the code phase over the peak correlation power. Preliminary results from processing airborne experimental data collected over duration of 1 minute demonstrate that the mean power ratios associated with four satellites are very similar. When such a single constant mean power ratio is used to estimate the relative delay and the SSH, the mean of the SSH estimation errors is 4.5cm and the error standard deviation (STD) is 1.08m in the presence of significant wave height of about 4 metres.

AB - This paper focuses on sea surface height (SSH) estimation using GNSS direct and reflected signals observed via an airborne receiver. A power-ratio-based method is presented to compute the relative delay of the reflected signal, which is then used to estimate the SSH. The power ratio is defined as the ratio of the correlation power at the code phase over the peak correlation power. Preliminary results from processing airborne experimental data collected over duration of 1 minute demonstrate that the mean power ratios associated with four satellites are very similar. When such a single constant mean power ratio is used to estimate the relative delay and the SSH, the mean of the SSH estimation errors is 4.5cm and the error standard deviation (STD) is 1.08m in the presence of significant wave height of about 4 metres.

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KW - correlation power ratio

KW - GNSS direct and reflected signals

KW - sea surface height estimation

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BT - GNSS+R 2012

PB - Institute of Electrical and Electronics Engineers (IEEE)

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Performance of GNSS-based altimetry using airborne experimental data

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