摘要
强震动记录对于中国的震害防御、地震应急等防震减灾事业意义重大,观测数据质量日益受到重视。文中给出强震动记录质量相关概念的初步定义,包括强震动记录和记录过程的质量,总结了强震动记录中存在的不完整波形、奇异波形(非对称、加速度基线明显偏移和尖刺等)、信噪比过低现象等,并提出提高强震动记录质量的8项措施,以保证记录的完整性、一致性、准确性和时效性。
Strong motion records are of great significance for the earthquake disaster prevention andearthquake emergency in our country.Results and suggestions are as follows:(1)Preliminarydefinition of related concepts on strong motion records quality is presented,including the qualityof strong motion records and recording process;(2)Such abnormal phenomena as incompletewaveform,low SNR,singular waveform(non symmetry,baseline offset and obvious accelerationspikes etc.)in strong motion records are summarized;(3)Eight measures are put forward toimproving the quality of strong motion records in order to ensure records integrity,consistency,accuracy and timeliness.
作者
周宝峰
于海英
温瑞智
谢礼立
Zhou Baofeng;Yu Haiying;Wen Ruizhi;Xie Lili(Institute of Engineering Mechanics, China Earthquake Administration, Harbin 150080, China;Key Laboratory of Earthquake Engineering And Engineering Vibration, China Earthquake Administration,Harbin 150080, China)
出处
《地震地磁观测与研究》
2017年第1期69-75,共7页
Seismological and Geomagnetic Observation and Research
基金
国家自然科学基金(项目编号:51308517
强震数据处理中的关键技术研究)
黑龙江省省自然科学基金项目(项目编号:E2015069
地震动永久位移识别及对隔震结构的影响研究
项目编号:E2015070
哈尔滨市轨道交通地震报警系统的关键技术研究)
关键词
强震观测
强震动记录质量
奇异波形
尖刺
非对称波形
strong motion observation
strong motion records quality
singular waveform
asymmetric waveform
spike
