For prediction of noise transmited from a source of large area or volume,the point source model is not applicable,therefore an equivalent imaginary source method by experimental simulation is advanced.
通过实验拟合提出了等效虚源法,该新方法可简便准确地预测体声源和面声源在不同距离的影响声级;而对于室内混响窗外传声的声影响预测,采用该方法也会使测量和计算变得十分简洁方便。
Combining the wavenumber integral model and virtual source method, a software for 3D scattering field from the buried target was developed.
基于波数积分声场模型和虚源方法,开发了可计算海底掩埋物体三维散射声场的模型软件。
And at last the image-source methodis compared with sound ray tracing technique briefly.
文中以一个不规则空间为例，给出了虚源法模拟声场的基本原理和算法，介绍了由模拟所得的脉冲响应获取声场明晰度等参数的方法。