与省革委会通告一起发布了李伯求将军军人风格的指示。
The formal announcement was accompanied by characteristically military-style personal directives from General li Boqiu.
利用希尔伯特变换求舰船噪声的包络谱，对舰船噪声的包络信号进行分析，并提取了四个特征量。
With Hilbert transform, the envelop spectrum of the signals radiated from ships was obtained. The ship radiated noise is analyzed and its 4 features are extracted from the envelop spectrum.
利用希尔伯特变换求舰船噪声的包络谱，对舰船噪声的包络信号进行分析，并提取了四个特征量。
With Hilbert transform, the envelop spectrum of the signals radiated from ships was obtained. The ship radiated noise is analyzed and its 4 features are extracted from the envelop spectrum.
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