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本文讨论了滇西数字地震仪台网噪声的来源、量级和卓越周期。给出由噪声水平确定的测震能力下限。估计了噪声对到时和谱的影响。
This article discusses the source, magnitude and period of excellence of digital seismograph network noise in Western Yunnan. The lower limit of the seismic capacity determined by the noise level is given. The effect of noise on arrival and spectrum is estimated.