Abstract:In this paper, the typical coseismic waveforms collected by vertical pendulum broadband tiltmeter at Jixian seismic station in Tianjin and the data from the seismometer at the same site are studied. We obtain and identify the spectrum characteristics, frequency response and phase composition of coseismic waveforms of vertical pendulum broadband tiltmeter in Tianjin. Based on the precursory network observation data tracking and analysis platform, we count the amplitude and magnitude of vertical pendulum broadband tiltmeter in different regions, and fit the relationship between amplitude and magnitude by empirical formula, and realize the maximum amplitude conversion of surface wave of vertical pendulum broadband tiltmeter and broadband seismometer at Jixian seismic station.The results show that the vertical pendulum broadband tiltmeter has rich recording frequency band and high consistency with broadband seismometer in waveform.
ZHU Bingqing,WANG Jianguo,GUO Wei et al. Data Fusion Analysis of Vertical Pendulum Broadband Tiltmeter and Broadband Seismometer in Tianjin[J]. jgg, 2021, 41(7): 759-764.