Application Of Mobile Single Base Station Network RTK Technology In Geophysical Prospecting

Based on the characteristics of trans-regional,long-distance operation and large-scale operation,the data network transmission technology,network data and radio signal conversion technology of "mobile single base station network RTK technology platform" are innovated,and the GPSNet function Modules,etc.,making the conventional RTK and network RTK perfect integration in the geophysical and geochemical exploration applications.Geophysical survey is the first step of the whole seismic exploration,and its measurement results and precision will directly affect the quality of seismic data acquisition,can affect the seismic data processing effect.At present,conventional RTK measurement technology can not meet the seismic exploration under complex conditions.Therefore,it is necessary to meet the needs of long-distance signal transmission and overcome the influence of complex terrain conditions.Based on the conventional RTK measurement and CORS network construction mode,For the mobile network RTK network signal broadcast mode,the conventional RTK measurement and network RTK measurement of organic combination.According to the different characteristics of mobile RTK technology platform,and based on the main technical problems,the network RTK technology platform is established and laid out.By studying different technology platform technology,we choose the network suitable for geophysical production RTK platform,using a single base station network RTK technology platform,and the platform to complete the corresponding technical improvements and data link research and development.In this paper,according to the characteristics of network RTK data transmission technology,this paper studies and analyzes the base station,the mobile station,and the base station and the mobile station.And the data center between the data transmission mode and data conversion format,the satellite positioning data and ephemeris files and other data stored in the base station,the mobile station according to a fixed domain name to access the data center,and the handbook network data transmission module and GPSNet software function Module for development.Using the conventional RTK technology and the network RTK technology to verify the known control points,the result is the biggest difference of 3.2cm,verify the reliability of mobile single base station network RTK technology,and its technology applied to the exploration area three-dimensional earthquake Exploration survey.