The complex soundfielddistribution of the focused transducers was calculated by the coordinate transform method, and the acoustic power was measured.
该文应用坐标变换法对该聚焦换能器的复杂声场分布进行了数值计算，并测定了其声功率。
2
The results showed that using the physical simulation experiment to investigate and assess rail noise was effective and reliable, especially for the distribution of soundfield in the building.
研究结果表明，采用物理模拟实验方法研究、评价铁路噪声，尤其是建筑群中的声场分布是可行和可靠的。
3
Some components of the directional distribution of soundfield can be calculated from the measured distribution.