On the basis of this solution, this paper gives the sound pressure spectrum densities of broad band and harmonic sources, and then discusses the characteristics of these sound fields respectively in detail.

• 在此解基础上，本文得到宽频源和简谐源的近场声压谱密度，指出此2种声源近声场各自的特点及源的旋转半径和轴向位置对声场结构的影响。