介绍了云南数字遥测台网的基本情况，阐述了地动噪声有效值和功率谱的计算方法。
The basic situation of Yunnan Digital Remote Network has been introduced. The method calculating the effective values and power spectra of the ground motion noise has been described in this paper.
振动用加速度有效值描述，噪声以声压级表示。
The vibration is characterized by the virtual value of acceleration, and the noise is indicated by the sound-pressure-level.
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