傅氏声强测量中的声压算法

本文介绍傅氏声强测量中，用几何平均声压代替算术平均声压，可以减少计算工作量．并从理论上证明了两者之间的差异可以忽略，因此可以保证声压测量的精度．

In the method of Fourier sound intensity measurement, the advantage of using geometric mean sound pressure instead of arithmetic mean, i.e., reduction in the amount of computation, is illustrated. The difference between them is proven theo retically to be negligible, and therefore the accuracy of measurement can be ensured