[1]番绍辉,王光明,刘克骧,等.龙陵邦腊掌测震台数据质量及背景噪声分析[J].华南地震,2026,46(06):147-153.[doi:10.13512/j.hndz.2026.06.14]
　FAN Shaohui,WANG Guangming,LIU Kexiang,et al.Data Quality and Background Noise Analysis of Longling Banglazhang Seismic Station[J].,2026,46(06):147-153.[doi:10.13512/j.hndz.2026.06.14]
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龙陵邦腊掌测震台数据质量及背景噪声分析()

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
46
期数:
2026年06期
页码:
147-153
栏目:
地震科学研究
出版日期:
2026-10-23

文章信息/Info

Title:
Data Quality and Background Noise Analysis of Longling Banglazhang Seismic Station
文章编号:
1001-8662（2026）06-0147-07
作者:
番绍辉; 王光明; 刘克骧; 马志刚; 杨铭昌
云南省地震局，昆明 650051
Author(s):
FAN Shaohui; WANG Guangming; LIU Kexiang; MA Zhigang; YANG Mingchang
Yunnan Earthquake Agency, Kunming 650051, China
关键词:
邦腊掌地震台; 数据质量; 背景噪声; 功率谱密度; 异常信号
Keywords:
Banglazhang Seismic Station;  Data quality;  Background noise;  Power spectral density;  Abnormal signal intensity
分类号:
P315
DOI:
10.13512/j.hndz.2026.06.14
文献标志码:
A
摘要:
基于龙陵新建邦腊掌测震台2024年2月—2025年12月的连续地震波形数据，采用噪声功率谱密度（PSD）、概率密度函数（PDF）和1~20Hz频段噪声均方根RMS值计算方法，分析其数据质量、背景噪声变化特征及噪声异常原因。结果表明：1Hz以上高频段噪声无显著日变化，人类活动干扰较弱，但其受附近小溪湍急水流、泥沙及河床相互作用产生的持续高频噪声干扰显著；0.05~0.5Hz微震频段仅观测到0.1~0.5Hz频段的次级微震频段噪声峰值，该频段呈现显著的季节性变化特征，秋冬季噪声水平较春夏季高2~3dB，且秋冬季噪声峰值出现频率低于春夏季；0.05Hz以下长周期频段无显著季节性变化，但水平向的噪声水平较垂直分量大，表明水平分量更易受温度扰动和大气压变化的影响。邦腊掌测震台背景噪声异常源于地震计脉冲标定、施工干扰，仪器故障及地震信号等。本研究成果为台站堪选、背景噪声水平与数据质量评估及异常信号识别提供重要参考依据。
Abstract:
Based on the continuous seismic waveform data from February 2024 to December 2025 at the newly-built Banglazhang Seismic Station in Longling, the data quality, background noise variation characteristics and noise anomaly causes were analyzed by using noise power spectral density（PSD）, probability density function（PDF） and noise root mean square (RMS) value calculation method in 1-20 Hz frequency band. The results show that there is no significant diurnal variation of high-frequency noise above 1 Hz, and the interference of human activities is weak, but it is significantly disturbed by the continuous high-frequency noise generated by turbid current, sediment and riverbed interations of the nearby stream. In the 0.05-0.5 Hz microseismic frequency band, only the peak noise of the secondary microseismic frequency band in the 0.1-0.5 Hz frequency band is observed, which shows signifi‐cant seasonal variation characteristics. The noise level in autumn and winter is 2-3 dB higher than that in spring and summer, and the frequency of peak noise in autumn and winter is lower than that in spring and summer. There is no significant seasonal variation in the long-period frequency band below 0.05 Hz, but the horizontal noise level is larger than the vertical component, indicating that the horizontal component is more susceptible to temperature dis‐turbance and atmospheric pressure change. The background noise anomaly of Banglazhang Seismic Station is de‐rived from seismometer pulse calibration, construction interference, instrument failure and seismic signal. The re‐search results provide an important reference for station site selection, background noise level and data quality as‐sessment, and abnormal signal recognition.

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备注/Memo

备注/Memo:
收稿日期：2026-01-23
基金项目：云南省地震局青年地震科学基金资助项目（2025K04）；云南省地震局创新团队（CXTD202508）；腾冲深部构造活动云南省野外科学观测研究站项目联合资助。
作者简介：番绍辉（1993-），男，工程师，主要从事地震监测与研究。E-mail: 250336803@qq.com
通信作者：王光明（1990-），男，高级工程师，主要从事地震研究等工作。E-mail: 609979407@qq.com
更新日期/Last Update: 2026-10-21