摘要
用希尔伯特变换求舰船噪声信号的包络谱 ,通过对实测舰船信号的分析 ,讨论了舰船信号包络谱和功率谱之间的关系。
With Hilbert transform, the envelop spectrum of navy vessel's noise signals was obtained. The relationship between enve lop and power spectrum is also discussed in the paper.
关键词
舰船噪声
信号
包络谱
功率谱
螺旋桨
navy vessel's noise
signal
envelop spectrum
power spectrum
