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对广义F检测(Selby,2008)可用于自动远震信号检测做了论述。该方法应用于为监测《全面禁止核试验条约》(CTBT)遵守情况而建立的国际监测系统(IMS)基本地震台网13个小孔径台阵10天的波形数据。结果表明广义F方法可用于小孔径台阵的信号检测,虽然相关噪声妨碍了原来的F检测在这种台阵中的有用性。通过把检测结果与《事件检查公报》(REB,由用于监测《全面禁止核试验条约》的国际数据中心IDC提供)预测的初至P型震相到时进行比较,表明广义F检测适合与国际数据中心所用的传统信号检测方法进行比较。尽管F所做检测的总数量大概是国际数据中心所做的一半,但F做了更多的候选关联检测。增加关联检测的比例能够提高公报自动构建的效率,减少分析者工作量。比传统方法更优的是F检测方法基于噪声和信号的概率理论和物理模型而解释简单,对待每个台阵同等和客观,不需要主观调整。对关联和不关联检测的慢度矢量分布的分析表明,F和国际数据中心的关联检测有相似分布,而非关联检测分布可能不同,在一些台阵国际数据中心非关联检测明显与相关噪声源关联。
The generalized F-detection (Selby, 2008) can be used for automatic teleseismic signal detection discussed. The method was applied to 10-day waveform data from 13 small aperture arrays of the International Monitored System (IMS) Basic Seismic Network established to monitor compliance with the CTBT. The results show that the generalized F method can be used for signal detection of small aperture array, although the correlation noise hinders the validity of the original F detection in this array. By comparing the test results with the first-arrival P-type phase predicted by the Incident Bulletin (REB, provided by IDC, the IDC monitoring the CTBT), it is shown that the generalized F-test is suitable for The traditional signal detection methods used in international data centers are compared. Although F did more than half the total number of tests done by IDC, F did more candidate correlation testing. Increasing the proportion of correlation testing can improve the efficiency of automatic bulletin building and reduce the workload of analysts. Better than traditional methods, the F-detection method is simple to interpret based on the probability theory and physical model of noise and signal, treating each array equally and objectively without the need for subjective adjustments. The analysis of slow vector distributions for correlation and uncorrelated detection shows that there is a similar distribution between F and IDC, and non-associated detection distributions may be different. In some NMICs, uncorrelated detection is obviously related to noise sources Associated.