Interest in the response of highly reflecting objects in water to modulated acoustical radiation forces makes it appropriate to consider contributions to such forces from perfectly reflecting objects to provide insight into radiation forces. The acoustic illumination can have wavelengths much smaller than the object's size, and objects of interest may have complicated shapes. Here, the specular contribution to the oscillating radiation force on an infinite circular cylinder at normal incidence is considered for double-sideband-suppressed carrier-modulated acoustic illumination. The oscillatory magnitude of the specular force decreases monotonically with increasing modulation frequency, and the phase of the oscillating force depends on the relative phase of the sidebands. The phase dependence on the modulation frequency can be reduced with the appropriate selection of a sideband relative-phase parameter. That is a consequence of the significance of rays that are incident on the cylinder having small impact parameters that are nearly backscattered. For one choice of a relative sideband phase, a prior partial wave series (PWS) solution is available, which supports the specular analysis when the PWS is evaluated for a rigid cylinder. The importance of specular contributions for aluminum cylinders in water is noted. A specular analysis for an analogous spherical reflector is also summarized.

中文翻译：

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镜面反射对圆柱体上静态和动态辐射力的贡献

对水中高反射物体对调制的声辐射力的响应的关注使得有必要考虑完美反射物体对此类力的贡献，以提供对辐射力的洞察力。声照明的波长可能远小于物体的大小，并且感兴趣的物体可能具有复杂的形状。在此，对于双边带抑制的载波调制声照明，考虑了法向入射时无限大圆柱体上的振荡辐射力的镜面反射贡献。镜面反射力的振荡幅度随调制频率的增加而单调减小，并且振荡力的相位取决于边带的相对相位。The phase dependence on the modulation frequency can be reduced with the appropriate selection of a sideband relative-phase parameter. 这是由于入射到圆柱体上的光线具有几乎反向散射的较小冲击参数的重要意义的结果。对于相对边带相位的一种选择，可以使用先前的部分波序列（PWS）解决方案，该解决方案在对刚性圆柱体的PWS进行评估时支持镜面分析。指出了镜面反射对水中铝缸的重要性。还总结了类似球形反射镜的镜面分析。对于相对边带相位的一种选择，可以使用先前的部分波序列（PWS）解决方案，该解决方案在对刚性圆柱体的PWS进行评估时支持镜面分析。指出了镜面反射对水中铝缸的重要性。还总结了类似球形反射镜的镜面分析。对于相对边带相位的一种选择，可以使用先前的部分波序列（PWS）解决方案，该解决方案在对刚性圆柱体的PWS进行评估时支持镜面分析。指出了镜面反射对水中铝缸的重要性。还总结了类似球形反射镜的镜面分析。