摘要
基于单次散射模型的尾波功率谱分析法，利用西昌遥测台网地震波实时处理系统记录的２４个地震数字化波形资料，计算了西昌地区地球介质对应于１３个不同频率的ＱＣ值。在１．０～２０．０Ｈｚ频率范围内，以幂函数ＱＣ＝Ｑ０ｆｎ拟合ＱＣ值随频率的变化关系。其中Ｑ０值在４３．０～８２．４之间，ｎ值在０．２４～０．９４之间。平均值分别为６６．２和０．５３。
Based on the single scattering model of coda power spectrum analysis,digital waveform data of 24 events recorded by the realtime processing system of the Xichang telemetry network are analyzed to estimate the Q C values of earth medium beneath the Xichang area for 13 specified frequencies.In the range of 1 0 to 20 0 Hz,taking the form of Q C=Q 0f n to estimate the frequency dependency of Q C ,it is found that Q 0 ranges from 43 0 to 82 4,and n from 0 24 to 0 96.The average value of Q 0 and are 66 2 and 0 53 respectively.
出处
《地震地磁观测与研究》
1998年第5期8-12,共5页
Seismological and Geomagnetic Observation and Research
基金
人事部"留学回国人员科技活动A类"资助
