Wave measurements using GPS

Li Chung Wu, Dong Jiing Doong, Beng Chun Lee, Chia Chuen Kao, Yen Pin Lin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

This study presents a method to use GPS-output velocity signal as wave measurement data. A high pass filter was applied to GPS velocity spectrum in order to separate wave motion and satellite motion in the frequency domain. The vertical displacement spectrum of sea surface particle was obtained from velocity spectrum by applying a transformation function. In this study, laboratory experiments were designed to simulate perfect harmonic ocean wave motion by a dynamic simulator, in order to verify the present idea. It was identified average 4% bias on the vertical displacements between simulated and GPS derived, identifying the reasonable result from present GPS wave measurement approach. Field test was also carried out in this study. The GPS receiver was installed on a buoy and the derived significant wave height and mean wave period were compared with the buoy measurements by accelerometer. Field experiment showed approximate trend from buoy measured and GPS derived but an improvability results in quantification was found.

Original languageEnglish
Title of host publicationMTS/IEEE Biloxi - Marine Technology for Our Future
Subtitle of host publicationGlobal and Local Challenges, OCEANS 2009
Publication statusPublished - 2009 Dec 1
EventMTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009 - Biloxi, MS, United States
Duration: 2009 Oct 262009 Oct 29

Publication series

NameMTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009

Other

OtherMTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009
CountryUnited States
CityBiloxi, MS
Period09-10-2609-10-29

Fingerprint

Global positioning system
High pass filters
Water waves
Accelerometers
Simulators
Experiments
Satellites

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Information Systems
  • Electrical and Electronic Engineering
  • Ocean Engineering

Cite this

Wu, L. C., Doong, D. J., Lee, B. C., Kao, C. C., & Lin, Y. P. (2009). Wave measurements using GPS. In MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009 [5422092] (MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009).
Wu, Li Chung ; Doong, Dong Jiing ; Lee, Beng Chun ; Kao, Chia Chuen ; Lin, Yen Pin. / Wave measurements using GPS. MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009. 2009. (MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009).
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title = "Wave measurements using GPS",
abstract = "This study presents a method to use GPS-output velocity signal as wave measurement data. A high pass filter was applied to GPS velocity spectrum in order to separate wave motion and satellite motion in the frequency domain. The vertical displacement spectrum of sea surface particle was obtained from velocity spectrum by applying a transformation function. In this study, laboratory experiments were designed to simulate perfect harmonic ocean wave motion by a dynamic simulator, in order to verify the present idea. It was identified average 4{\%} bias on the vertical displacements between simulated and GPS derived, identifying the reasonable result from present GPS wave measurement approach. Field test was also carried out in this study. The GPS receiver was installed on a buoy and the derived significant wave height and mean wave period were compared with the buoy measurements by accelerometer. Field experiment showed approximate trend from buoy measured and GPS derived but an improvability results in quantification was found.",
author = "Wu, {Li Chung} and Doong, {Dong Jiing} and Lee, {Beng Chun} and Kao, {Chia Chuen} and Lin, {Yen Pin}",
year = "2009",
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Wu, LC, Doong, DJ, Lee, BC, Kao, CC & Lin, YP 2009, Wave measurements using GPS. in MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009., 5422092, MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009, MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009, Biloxi, MS, United States, 09-10-26.

Wave measurements using GPS. / Wu, Li Chung; Doong, Dong Jiing; Lee, Beng Chun; Kao, Chia Chuen; Lin, Yen Pin.

MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009. 2009. 5422092 (MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Wave measurements using GPS

AU - Wu, Li Chung

AU - Doong, Dong Jiing

AU - Lee, Beng Chun

AU - Kao, Chia Chuen

AU - Lin, Yen Pin

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N2 - This study presents a method to use GPS-output velocity signal as wave measurement data. A high pass filter was applied to GPS velocity spectrum in order to separate wave motion and satellite motion in the frequency domain. The vertical displacement spectrum of sea surface particle was obtained from velocity spectrum by applying a transformation function. In this study, laboratory experiments were designed to simulate perfect harmonic ocean wave motion by a dynamic simulator, in order to verify the present idea. It was identified average 4% bias on the vertical displacements between simulated and GPS derived, identifying the reasonable result from present GPS wave measurement approach. Field test was also carried out in this study. The GPS receiver was installed on a buoy and the derived significant wave height and mean wave period were compared with the buoy measurements by accelerometer. Field experiment showed approximate trend from buoy measured and GPS derived but an improvability results in quantification was found.

AB - This study presents a method to use GPS-output velocity signal as wave measurement data. A high pass filter was applied to GPS velocity spectrum in order to separate wave motion and satellite motion in the frequency domain. The vertical displacement spectrum of sea surface particle was obtained from velocity spectrum by applying a transformation function. In this study, laboratory experiments were designed to simulate perfect harmonic ocean wave motion by a dynamic simulator, in order to verify the present idea. It was identified average 4% bias on the vertical displacements between simulated and GPS derived, identifying the reasonable result from present GPS wave measurement approach. Field test was also carried out in this study. The GPS receiver was installed on a buoy and the derived significant wave height and mean wave period were compared with the buoy measurements by accelerometer. Field experiment showed approximate trend from buoy measured and GPS derived but an improvability results in quantification was found.

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Wu LC, Doong DJ, Lee BC, Kao CC, Lin YP. Wave measurements using GPS. In MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009. 2009. 5422092. (MTS/IEEE Biloxi - Marine Technology for Our Future: Global and Local Challenges, OCEANS 2009).