Samarasinghe Prasanga, Abhayapala Thushara D, Kellermann Walter
Research School of Engineering, College of Engineering and Computer Science, The Australian National University, Canberra, ACT 2601, Australia
School of Electrical Engineering and Automation, University of Erlangen-Nuremberg, Cauerstraße 7, 91058 Erlangen, Germany
J Acoust Soc Am. 2017 Oct;142(4):EL337. doi: 10.1121/1.5002078.
Acoustic reciprocity is a fundamental property of acoustic wavefields that is commonly used to simplify the measurement process of many practical applications. Traditionally, the reciprocity theorem is defined between a monopole point source and a point receiver. Intuitively, it must apply to more complex transducers than monopoles. In this paper, the authors formulate the acoustic reciprocity theory in the spherical harmonics domain for directional sources and directional receivers with higher order directivity patterns.
声学互易性是声波场的一个基本特性，常用于简化许多实际应用的测量过程。传统上，互易定理是在单极子点源和点接收器之间定义的。直观地说，它必须适用于比单极子更复杂的换能器。在本文中，作者在球谐域中为具有高阶指向性图案的定向源和定向接收器建立了声学互易性理论。
