WorldCat Identities

Innis, G. S, Jr

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Works: 1 works in 1 publications in 1 language and 1 library holdings
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Most widely held works by G. S, Jr Innis
On the Determination of the Radiation Pattern of an Emitter from Nearfield Data( Book )

1 edition published in 1960 in English and held by 1 WorldCat member library worldwide

In this report the problem of determining the field due to a distributed source is discussed. Only fields in which the disturbance is propagated in accordance with the classical, linear, scalar, homogeneous equation of wave motions are considered. The Green's function is used to derive two solution forms to the problem, and it is noted that these same forms have been discovered by other investigators using different techniques. One of the forms presented requires the specification of inhomogeneous Cauchy boundary conditions on the bounding surface while the other form requires only inhomogeneous Dirichlet conditions on the boundary. In the method requiring Cauchy conditions, an approximate relation is found so that, in effect, Dirichlet conditions are specified. The error introduced by making this approximation is mentioned. Finally, the radiation pattern of an underwater acoustic radiator is computed using each of the two methods and is compared with the measured radiation pattern
 
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