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 proceedingConference proceeding contribution

4 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 languageEnglish
Title of host publicationGNSS+R 2012
Subtitle of host publication2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-6
Number of pages6
ISBN (Electronic)9781467328852, 9781467328845
ISBN (Print)9781467328838
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity, GNSS+R 2012 - West Lafayette, IN, United States
Duration: 10 Oct 201211 Oct 2012

Other

Other2012 Workshop on Reflectometry Using GNSS and Other Signals of Opportunity, GNSS+R 2012
CountryUnited States
CityWest Lafayette, IN
Period10/10/1211/10/12

Keywords

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

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