Directivity index of an underwater acoustic transducer array

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The discussion centers on calculating the directivity index of an underwater acoustic transducer array using half power beamwidths in both azimuth and elevation planes. Participants suggest that reviewing existing literature and sharing specific findings can help clarify the calculation process. There is also a recommendation to consider parallels with RF antenna arrays, as the mathematical principles may be similar. Engaging with relevant resources and asking targeted questions is encouraged to deepen understanding. Overall, the conversation emphasizes the importance of research and specific inquiries in solving the problem.
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Is there a relation or formula to calculate directivity index of an underwater acoustic transducer array, given the half power beamwidths of the array in azimuth and elevation planes.
 
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Welcome to PF.

What have you found so far in your reading? Can you post some links to your reading and ask specific questions about that reading? That's probably the best way to get you started on this question.

Also, do you have any experience with RF antenna arrays? Some of the math will be similar.
 

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