CAJ | 학술논문

地震台阵通过聚束处理可提高信号的信噪比,增强对弱信号的识别.聚束可看作时空带通滤波器,其通带由最小和最大波数定义,而波数是台阵几何结构的函数.论文讨论了兰州海拉尔核查地震台阵在禁核试北京国家数据中心的聚束波束配置方法,该方法考虑到台阵的几何结构、台阵波数分辨率、地震震相的慢度和频率分布,同时兼顾了系统的实时处理速度,并在禁核试北京国家数据中心数据处理系统中实际运行.
지진태진통과취속처리가제고신호적신조비,증강대약신호적식별.취속가간작시공대통려파기,기통대유최소화최대파수정의,이파수시태진궤하결구적함수.논문토론료란주해랍이핵사지진태진재금핵시북경국가수거중심적취속파속배치방법,해방법고필도태진적궤하결구、태진파수분변솔、지진진상적만도화빈솔분포,동시겸고료계통적실시처리속도,병재금핵시북경국가수거중심수거처리계통중실제운행.
Beamforming can improve seismic array SNR and enhance the detection for weak signalg.Beamforming can be seen as a spatiotemporal band-pass filter of which pass-band is defined by the minimum and maximum wavenumbers,which are functions of the geometry configuration of the array.The measure for beam deployment for HILR and LZDM Verification Seismic Array in Comprehensive NuclearTest-Ban Treaty Beijing NDC is researched in the paper.The measure is based on the geometry configuration of the array,the wavenumber resolution of the array,slowness and frequency distributions of seismic phases.At the same time,the real-time processing speed of system is also taken into account.The measure is operated in data processing systems of CTBT Beijing NDC.