LIST OF ILLUSTRATIONS 



Figure No . Page No , 



1 Simple Ocean Wave 2 



2 Real Wave in Wave Number Space ' 7 



3 Directional Wave Spectrum at a Fixed Frequency, 



fo 8 



4 Wave Direction Analysis 27 



5 Direction Analysis from a Pair of Array Elements 28 



6 Directional Estimates for a Pair of Array Elements 30 



7 Least Square Single Wave Fit Directional Spectra 

 A^Cf.e^) 33 



8 Detector Geometry 34 



il 



