Accession Number:

ADA234806

Title:

Shipboard Wave Height Sensor

Descriptive Note:

Final rept

Corporate Author:

SCIENCE APPLICATIONS INTERNATIONAL CORP GOLETA CA

Personal Author(s):

Report Date:

1990-11-01

Pagination or Media Count:

101.0

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.

Subject Categories:

  • Physical and Dynamic Oceanography
  • Infrared Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE