OPTIMAL DESIGN FOR WAVE SPECTRUM ESTIMATES

Non-stationarity in an actual wave field restricts the application of the existing methods of estimating spectra. Despite the enormous amount of research work in the past, an analyst today is still faced with the lack of a unique procedure capable of providing a spectrum estimate which can be considered as the most accurate for the wave data collected under conditions where the stationary assumption is in doubt. In this paper a generalized method is presented for estimating one dimensional frequency spectrum considering the non-stationarity. The generalized method and the associated design relations provide an effective measure for assessing the statistical quality of spectrum estimates, and a natural criterion as to how to select an optimal sample size. Concepts are illustrated by actual wave data analysis, and the validity of the procedure is demonstrated by simulation. Equations and tables complement analysis; graphs are appended.

• Supplemental Notes:
  • Coastal Eng Conference, 14th Int, Proceedings, V1, Copenhagen, Denmark, June 24-28, 1974.
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Tayfun, M A
  • YANG, C Y
  • Hsiao, G C
• Conference:
  • Coastal Eng Conference, 14th Int, Proceedings, V1, Copenhagen, Denmark, June 24-28, 1974.
• Publication Date: 1975

Media Info

• Features: References;
• Pagination: p. 280-300

Subject/Index Terms

• TRT Terms: Electromagnetic spectrum; Wave measurement; Waveform analysis
• Subject Areas: Design; Marine Transportation;

Filing Info

• Accession Number: 00129781
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Mar 29 1976 12:00AM