| Summary: | 碩士 === 國立中正大學 === 應用地球物理研究所 === 104 === Continuous GPS array (array) is a structural deformation monitoring activities in recent years, one effective tool. Taiwan's existing high-density continuous GPS array, after the earthquake is often used to calculate earthquakes with seismic displacement, more follow-up can be used to assist in solving the focal mechanism and dynamic model inversion to body work. RTKLIB many GPS solver software as an open source free software, including general GPS / GNSS data processing and basic navigation functions. The software itself is not designed for earth science applications to develop, but with a graphical interface, easy to install, easy to operate, and other characteristics. Earth sciences and general common professional software, such GAMIT / GLOBK (GG), Bernese GPS have inexpensive, easy to obtain, simple operational advantages; and GIPSY, CSRS-PPP online software compared to more controllable parameters, batch processing , through the Internet can not be solver advantage, this advantage is particularly conducive to teaching. In this study, three spindle research, the use of the first part and GG RTKLIB solver Mino earthquake before and after the three-day continuous GPS data to observations with seismic displacement effect, the result was calculated using RTKLIB solution each station COSEISMIC GG Solutions displacement of the stations correlation coefficients above 0.8, goodness of fit is quite good, and the use of high-frequency data RTKLIB solver can clearly caught with horizontal seismic phenomenon; the second part of the real-time location using RTKLIB program can effectively monitor the station information field, and has a record of navigational functions, official statement can reach mm level accuracy in the horizontal direction; the third part selected three continuous GPS stations Chiayi area to RTKLIB precise point positioning Solutions Operators of these three test stand 2013 data, and the use of GG and two online solver software (GIPSY, CSRS-PPP) to be verified, as the use of GG true value point of view, RTKLIB the solutions of 2013 and the velocity field not ideal, it is the most consistent GIPSY followed CSRS-PPP.
This study shows that during the short period of time RTKLIB single baseline solution with high-frequency seismic displacement and seismic observation data signal count solution, the performance is quite good, and the software itself is open source, free of charge, under the operating conditions can facilitate in the real-time location achieve experiment mm level, but for a long time velocity field estimate the magnitude of the change in the daily solution is too large, and there is a half anniversary of the noise not eliminated, in this experiment did not do the filtering process, leading the whole velocity field in the wrong direction.
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