Abstract
AbstractThis paper presents a recursive filter designed from the second order transfer function of a velocity‐flat‐response seismometer by impulse invariance. This filter includes less coefficients than that designed by bilinear transformation and its usage is more convenient. Numeric experiments using this recursive filter have been done for deconvolution and simulation. A short period record was also simulated for a real broadband record of an earthquake. All the simulated results are well consistent with real system records. Some relative azimuth measurements of seismometers with the cross correlation analysis method have been conducted with the aids of simulation. The results are closer to absolute measurements by the north finder than that without simulation.
Published Version
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