Site Location and System Test Analysis of CORS in Dongguan
Satellite navigation and positioning reference station is not only an important infrastructure to provide high-precision spatial and temporal reference,but also a prerequisite for engineering and scientific research such as navigation and location services,precision satellite or-biting,geological disaster monitoring,etc. The results of GNSS data quality analysis can provide important data support for the siting and con-struction of continuous operation satellite positioning reference station. Based on Anubis software,this paper takes five preset CORS stations in Dongguan City as an example,and evaluates the observation environment of the preset CORS stations in terms of the proportion of intact observa-tions,multipath effect,weekly hopping ratio,and signal-to-noise ratio,and carries out the system compatibility test,the system performance test,and the real-time positioning accuracy test. The results show that the preset CORS site has little interference from the surrounding environment,the data quality meets the IGS standard,the system is compatible with major satellite navigation systems,the initialization time is short,the fix success rate is close to 100 percent,the real-time positioning accuracy reaches the centimetre level,which overall meets the design requirements.
site location analysisanubisdata quality analysisCORS performance analysis
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NSTL
万方数据
