Using previous results [Vinogradova, J. Acoust. Soc. Am. 144(3), 1146–1153 (2018)] on the spectrum of complex eigenvalues for an open elliptic cavity with variably placed longitudinal slits, the author investigates the resonance excitation of such a cavity by obliquely incident plane waves. The complete investigation of the resonance response is based on accurate calculation of the monostatic and bi-static sonar cross-sections, as well as calculation of the jump in normal velocity at the cavity surface. High-accuracy calculations are obtained by employing the rigorous Method of Analytical Regularization. Furthermore, studies of semi-elliptic cavities with high eccentricities, modelling the extremely deep acoustical cavities, are also performed.

中文翻译：

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平面波的共振散射由具有可变放置的纵向缝隙的柔软椭圆形腔体引起。

使用以前的结果[Vinogradova，J。Acoust。Soc。上午。144（3），1146–1153（2018）]，在具有可变放置纵向缝隙的开放椭圆形腔的复杂特征值的频谱上，作者研究了倾斜入射的平面波对该腔的共振激发。共振响应的完整研究基于对单静态和双静态声纳横截面的精确计算，以及腔表面法向速度跳跃的计算。通过使用严格的分析正则化方法可以获得高精度的计算结果。此外，还对具有高偏心率的半椭圆形空腔进行了研究，对极深的声学空腔进行了建模。