摘要
讨论了在频域中真实地面运动的复原问题,借助于一个稳定的六阶带通滤波器可使地震仪反演系统趋于稳定,最后由差分方程递归求出真实地动位移,结果表明,对同一个地震,不同的仪器其原始响应不同,但由其复原的真实地面运动结果却有相当好的一致性。这证明了所采用的复原方法的可用性。
In this paper, the retrieval of actual groune motion in frequency domain is discussed. The seismometer inverse system may be stability by means of a stable six order band pass filter, then the actual ground motion displacement is obtained using difference equation. The result proves that the original recordings of different seismometers are different for a same earthquake, but their retrieved actual ground motion have a good accordance. This demonstrates the effectiveness of above processing.
出处
《地震地磁观测与研究》
1997年第6期52-58,共7页
Seismological and Geomagnetic Observation and Research