Accuracy Analysis of GNSS Surface Displacement Resolving Based on Dual-mode Communication Technology
In geological disaster monitoring,the observation data is often transmitted back to the server through mobile communication,and the data transmission mode is relatively single,the signal interruption problem caused by signal instability or disaster is difficult to solve.By combining radio station's Ad Hoc Network communication technology with 4G communication technology,a GNSS receiver with dual-mode communication mode is developed to compensate for the shortcomings of single-mode communication.Build a testing environment in a stable area,using 4G communication as a benchmark,to verify the stability and reliability of the radio station's Ad Hoc Network communication method.Install the benchmark station in a stable position,and install one GNSS receiver at a distance of 1.5,3,5,and 6 km respectively from the benchmark station.Each host should enable data transmission between the radio station and 4G channels to verify the degree of attenuation of the radio station data transmission quality with increasing distance.Based on the test results,verify the applicable scenarios and optimal networking distance of the radio station transmission method.
geological disaster monitoringdual-mode communication technologyradio station's Ad Hoc Networkoptimal networking distance
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