【摘要】 与普通近场声全息理论相比,循环平稳近场声全息理论可以更好地用于分析循环平稳声场。讨论了循环平稳近场声全息的重建参数的若干确定准则,包括:全息面孔径,相邻测点间距及全息面与声源间的距离等。仿真表明,在这些准则的指导下,可以确定合理的重建参数,提高循环平稳近场声全息理论的重建精度,提高其工程实用价值。更多还原

【Abstract】 The cyclostationary near field acoustic holography (CYNAH) technique is proposed for cyclostationary sound fields in previous papers. Here, some rules for determining CYNAH parameters are further discussed, such as, aperture of a hologram plane, distances between adjoining gauge points, and distance from a hologram plane to the surface of a sound source, etc. The simulation results show that the appropriate reconstructed parameters can be obtained by these rules, and so the accuracy of CYNAH reconstruction is improved.更多还原