Onboard sea state estimation based on measured ship motions

Ulrik Dam Nielsen, David C. Stredulinsky

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It is possible to obtain estimates of the sea state at the specific position of an advancing vessel by processing measurements of the vessel’s wave-induced responses. The analogy to a wave rider buoy is clear, although the situation of an advancing ship is more complex due to forward speed. The paper studies the ‘wave buoy analogy’, and a large set of full-scale motion measurements is considered. It is shown that the wave buoy analogy gives fairly accurate estimates of sea state parameters when compared to estimates from real wave rider buoys.
Original languageEnglish
Title of host publicationProceedings of the 12th International Ship Stability Workshop
Publication date2011
Publication statusPublished - 2011
EventInternational Ship Stability Workshop - Washington,D.C.
Duration: 1 Jan 2011 → …
Conference number: 12


ConferenceInternational Ship Stability Workshop
Period01/01/2011 → …

Bibliographical note

Hosted by NSWCCD (David Taylor Model Basin) and the SNAME Chesapeake Section


  • Avancing ship
  • Sea state estimation
  • Dcision support systems
  • Motion measurements


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