Similarity Study of Electromagnetic and Underwater Acoustic Scattering by Three-Dimensional Targets in Unbounded Space

The characterization of targets by electromagnetic (EM) scattering and underwater acoustic is an important object research in these two related fields. However, there are some difficulties the simulation measurement large targets. Consequently, a similarity study between EM may help to share results one domain other even provide general reference method for characteristics both Based on physical optics, conductors soft/hard dielectrics elastics studied. In particular, we derive how transfer quantities from into another so that similar patterns arise. Then, according rules, three typical with different types boundaries were simulated measured, curves found be perfect agreement, correlation coefficients above 0.93. 0.98, 0.91, 0.65 measured verify proposed theory scattering, including conditions illustrate characteristic target can using based derived vice versa.