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Fig. 4 | Earth, Planets and Space

Fig. 4

From: Monitoring the instrument response of the high-sensitivity seismograph network in Japan (Hi-net): effects of response changes on seismic interferometry analysis

Fig. 4

Results of a grid-search method for the determination of the natural frequency f and damping constant h of a Hi-net sensor. a Values of rr as a function of f and h. be Observed (black line) and calculated instrument responses for various parameter sets: (b) f = 1.11 Hz and h = 0.68, c f = 1.05 Hz and h = 0.55, d f = 1.25 Hz and h = 0.80, and e f = 1.0 Hz and h = 0.70. Each calculated waveform is colored according to the value of rr

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