. Directivity function of a general receiving array for spherical and plane sound waves. Sound-waves. This is the equation for a linear array of N - 2m elements1 or, if the directivity function is normalized ^/ = E <ai** i Nsini^) (b) Circular Array (fig. 4) (Compensated) Let the circle have a radius r. Then for a discrete set of elements on the circumference, the position of the i^1 element is x = rcos0., y. = rsin0.,z. = 0 0 0 0 0 â £,. ELEMENT (x., V.) SOURCE P(x0 ,yo,zo) -*>y Figure 4. Source and elements of a circular array. *Reference 2, equation (A9), page 16. **Reference 1, equa
. Directivity function of a general receiving array for spherical and plane sound waves. Sound-waves. This is the equation for a linear array of N - 2m elements1 or, if the directivity function is normalized ^/ = E <ai** i Nsini^) (b) Circular Array (fig. 4) (Compensated) Let the circle have a radius r. Then for a discrete set of elements on the circumference, the position of the i^1 element is x = rcos0., y. = rsin0.,z. = 0 0 0 0 0 â £,. ELEMENT (x., V.) SOURCE P(x0 ,yo,zo) -*>y Figure 4. Source and elements of a circular array. *Reference 2, equation (A9), page 16. **Reference 1, equation (51), page 56. 17. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Warner, K. K; U. S. Navy Electronics Laboratory (San Diego, Calif. ). San Diego, Calif. : U. S. Navy Electronics Laboratory
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