GPS technology based on tracking stationmodel is introduced for classical method of set up the GPS net.
目前我国已布测的GPS网均是采用经典布测方法建立的。
2
A new stationmodel which has both the advantages of these stations at same time has been derived by the author.
本文分析了几种不的折返站型的优缺点,进而导出兼有几种站型优点的新站型。
3
Through analyzing model, find out the system bottlenecks, optimize the scheme by using different combination of parameter, finally get optimized highway freight stationmodel.