Shipboard Wave Height Sensor

Abstract

This report summarizes the results of an effort to develop, test and evaluate a pulsed laser based, shipboard mounted, ship motion compensated wave height sensor. This system was used in a North Atlantic run to measure sea surface waves at normal sea speed. The wave height sensor uses an infrared wave surface range sensor coupled with a vertical accelerometer and pitch and roll sensors. The prototype system was evaluated for measurement accuracy and reliability as well as ruggedness and survivability in elevated sea state conditions. Lack of ground truth precluded a comprehensive qualitative evaluation of overall performance. Data drop outs were experienced when operating in elevated seas thereby making further work necessary on the sensor and on the data processing software. Prototype system characteristics, signal processing flow chart and analyzed data are presented. As an adjunct to development of the wave height sensor, another project was conducted to investigate through model testing the influence of ship generated waves in front of the bow. The report of this study is included as an appendix.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1990
Accession Number
ADA234806

Entities

Organizations

  • Leidos

Tags

Communities of Interest

  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Coast Guard
  • Computers
  • Data Acquisition
  • Data Displays
  • Detection
  • Engineering
  • Infrared Lasers
  • Lasers
  • Measurement
  • Naval Architecture
  • Near Field
  • Power Spectra
  • Pulsed Lasers
  • Radar Altimeters
  • Reliability
  • Test And Evaluation

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Inertial Navigation Systems.
  • Systems Analysis and Design

Technology Areas

  • Directed Energy