Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/41701
Title: In situ measurements of directional wave spectra from an unmanned aerial system
Authors: Collins, Clarence O.
Brodie, Katherine L.
Keywords: Ocean waves--Monitoring
Drone aircraft
Ocean waves--Measurement
Publisher: Coastal and Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Technical Note (Engineer Research and Development Center (U.S.)) ; no. ERDC/CHL CHETN-IV-128
Abstract: This Coastal and Hydraulics Engineering Technical Note (CHETN) describes the ability to measure the directional-frequency spectrum of sea surface waves based on the motion of a floating unmanned aerial system (UAS). The UAS used in this effort was custom built and designed to land on and take off from the sea surface. It was deployed in the vicinity of an operational wave sensor, the 8 m* array, at the US Army Engineer Research and Development Center (ERDC), Field Research Facility (FRF) in Duck, NC. While on the sea surface, an inertial navigation system (INS) recorded the response of the UAS to the incoming ocean waves. Two different INS signals were used to calculate one-dimensional (1D) frequency spectra and compared against the 8 m array. Two-dimensional (2D) directional-frequency spectra were calculated from INS data using traditional single-point-triplet analysis and a data adaptive method. The directional spectrum compared favorably against the 8 m array.
Description: Technical Note
Gov't Doc #: ERDC/CHL CHETN-IV-128
Rights: Approved for Public Release; Distribution is Unlimited
URI: https://hdl.handle.net/11681/41701
http://dx.doi.org/10.21079/11681/41701
Appears in Collections:Technical Note

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