地震地磁观测与研究Issue(1)：231-235,5.DOI:10.3969/j.issn.1003-3246.2014.01/02.043
时频联合分析地震计正弦标定数据
摘要
Abstract
In this article,the authors describe the short-time Fourier transform.Introduce the char-acteristics of the sine calibration signal of seismometer in time domain and frequency domain, propose an algorithm for identifying the starting and ending points in calibration data base on the joint of time-domain and frequency domain first time.Using this algorithm,we can accu-rately identify each sine calibration signal frequency and amplitude,and then calculate the velocity response sensitivity of seismometer.关键词
地震计/正弦标定/短时傅里叶变换/时频联合分析Key words
seismometer/sine calibration/short-time Fourier transform/joint of time-frequency analysis引用本文复制引用
刘明辉,林湛,周银兴,马士振,崔仁胜,吴卫远..时频联合分析地震计正弦标定数据[J].地震地磁观测与研究,2014,(1):231-235,5.基金项目
中国地震局地震预测研究所基本科研业务费专项（编号2010IES0201）资助 （）
