次声噪声场的测量与分析
Measurements and analyses of infrasound noise field in the atmosphere
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摘要: 本文阐述了大气次声噪声场的测量和分析方法,得到一组风速为4m/s噪声的空间相关半径,它可以作为声阵设计的初步依据;同时,还测量和计算了风噪声的速度——声压关系曲线,得到声阵在接收次声信号时的抗干扰能力。Abstract: Methods for measuring and analyzing the infrasound noise field in the atmosphere have been expounded. A set of space correlation radii of noise corresponding to wind speed 4 m/s has been obtained, which can be taken as the tentative basis for an acoustical array design. At the same time, the wind speed-sound pressure relation curves have been measured and calculated, and the antijamming ability of the array receiving infrasonic signals is obtained.