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Estimates of wave direction developed from DPG data agree 

 best with those of ■ the CERC radar for a 17 minute long DPG record 

 with 2 Hertz effective sampling and 16 degrees of freedom. Analysis 

 results for an 8.5 minute record with A Hertz sampling and 8 degrees 

 of freedom differ from the results of a 17 minute record depending 

 upon which half of the record is analyzed. 



Possible modifications to the instrument design and 

 recommendations for future DPG development have been outlined. The 

 configuration of the DPG arms and the manner in which the data is 

 processed, transmitted, and analyzed might be altered to obtain more 

 accurate or effective directional wave data. 



The DPG directional wave monitor prototype has thus far 

 provided reliable, accurate directional wave data through the use of 

 a smaller and lighter instrument than conventional pressure sensor 

 arrays. It generates directional wave spectra using data that is 

 directly measured instead of arithmetically created and could 

 potentially develop higher order directional Fourier coefficients 

 than conventional arrays. Overall, the DPG appears to be a promising 

 advancement in the technology of directional wave measurement. 



