The Statistical Evaluation of Directional Spectrum Estimates Derived from Pitch/Roll Buoy Data

摘要: Abstract Estimates of the ocean wave directional spectrum may be extracted from observations surface vertical acceleration and slope made with a pitch/roll buoy. The analysis requires specification parametrical model procedure by which parameters are fixed. statistical validity variability result must then examined. This is accomplished formulating hypothesis that true spectrum; rejected if difference between data computed improbably large. Otherwise, accepted as statistically valid. Model in terms variances parameters. One particular scheme has received wide application recent years; this paper examines results obtained “conventional” procedure. Explicit formulas for covariance matrix, summari...