CAJ | 학술논문

由于地震信号的复杂性，被引入的信号可能是噪声，但也有可能带有与地质结构相关的重要信息，前者应该被消除，后者则应该保留，如何对信号类型进行判断成为了地震信号处理中的难点。文中假定被引入信号属于不同的信号类型，提出一种基于小波分析的地震信号特征向量提取方法，对被引入的信号计算其在各个频率尺度下包含的无偏估计量，取得该信号在这个尺度下的无偏估计量构成该信号的特征向量，然后根据特征向量值计算该信号的模式分类，从而判断该信号类型，对不同信号类型采用不同处理方式，仿真实验证明了本方法的有效性。
유우지진신호적복잡성，피인입적신호가능시조성，단야유가능대유여지질결구상관적중요신식，전자응해피소제，후자칙응해보류，여하대신호류형진행판단성위료지진신호처리중적난점。문중가정피인입신호속우불동적신호류형，제출일충기우소파분석적지진신호특정향량제취방법，대피인입적신호계산기재각개빈솔척도하포함적무편고계량，취득해신호재저개척도하적무편고계량구성해신호적특정향량，연후근거특정향량치계산해신호적모식분류，종이판단해신호류형，대불동신호류형채용불동처리방식，방진실험증명료본방법적유효성。
Because of the complexity of seismic signal, the introduced signal may be noise. But it may be the potential and geological structure associated with important information too.the former should be eliminated, the latter should be retained.The judgment of signal type has become the difficult point in seismic signal processing. This paper assumes that the introduced signals are belonging to different types of signal. The method is proposed based on wavelet analysis of the seismic signal feature extraction, the introduced signal is calculated in various frequency scales . The unbiased estimation is as feature vector, and then according to the feature vector to calculate the signal pattern classification, so as to judge the signal types.