地震地磁观测与研究2024，Vol.45Issue(1)：35-39,5.DOI:10.3969/j.issn.1003-3246.2024.01.005
小泉沟地震台台基背景噪声特征分析
Analysis of background noise characteristics of Xiaoquangou Seismic Station
段绍鑫 1邓明文 1张剑锋 1张森1
作者信息
- 1. 中国新疆维吾尔自治区 841000 新疆维吾尔自治区地震局库尔勒地震监测中心站
- 折叠
摘要
Abstract
Welch algorithm is used to calculate the power spectral density(PSD)of Xiaoquangou Seismic Station.The RMS value of the average ground motion noise is 2.88×10-9 ms for each section of the 1-20 Hz frequency band in the vertical direction of 1/3 octave,it is less than 3.16×10-8 m/s,which accords to class I standard.According to the calculated probability density function(PDF),the background noise of the Xiaoquangou Seismic Station is characterized by a significant increase in the background noise during the period from 12 to 20 o'clock and a significant decrease in the background noise at night.The annual variation of background noise was influenced by temperature and pressure,and showed a trend of low in summer and high in winter.关键词
小泉沟地震台/背景噪声/功率谱密度/概率密度函数Key words
Xiaoquangou Seismic Station/background noise/power spectrum density/probability density function引用本文复制引用
段绍鑫,邓明文,张剑锋,张森..小泉沟地震台台基背景噪声特征分析[J].地震地磁观测与研究,2024,45(1):35-39,5.
