In order to constraint the effect of short-time burst noise on the abstraction of signals from Controlled Acurate Seismic Source (CASS), a weighted matched filtering method is studied and proposed in the paper. A suitable weight is imparted to a signal segment by assessing the distribution of burst noise in this periods. Low weights are chosen for the periods with high noise level and larger weights for low noise level segment. The weighted signals are then filtered by the weighted matched filter for the purpose of reducing the impact of short-time burst noise and improving signal to noise ratio of the output signals.%为克服短时突发噪声对提取精密控制震源信号的影响,本文研究并提出了加权匹配滤波方法.通过评估记录中的噪声时间分布取得相对应的信号段的权重,对噪声水平高的时段分配较小的权重,噪声水平较低的时段分配较大的权重,进行加权匹配滤波,达到降低短时突发噪声的影响、有效提高输出信号信噪比的目的.
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