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引言在整个记录处理过程中的总误差,不可避免地限制了强震记录的使用频带范围。可用频带限值的确定不仅要估计每个低频谐量的信-噪比, 而且还要考虑每个谐量的处理噪声在总能量中所占的比重。对于频率为ω(在仪器的加速度响应曲线
INTRODUCTION The total error in the entire recording process inevitably limits the useful frequency range of strong earthquake records. The determination of the available band limits not only estimates the signal-to-noise ratio of each low-frequency harmonic but also takes into account the proportion of the processing noise of each harmonic in the total energy. For the frequency ω (in the instrument’s acceleration response curve