科技视界
科技視界
과기시계
Science & Technology Vision
2015年
35期
13-15
,共3页
STK%北斗二代%仿真%GDOP
STK%北鬥二代%倣真%GDOP
STK%북두이대%방진%GDOP
STK%BD-2%Simulation%GDOP
本文通过使用STK软件对北斗二代卫星星座进行了仿真,进而对其覆盖性与可见性以及定位精度进行了仿真和分析,最后以北京地面站为参考点,仿真分析了北斗二代的GDOP值。最后得出了北斗二代在亚太地区可以观测到的卫星数量相对较多,定位精度较好,也证明了北斗是一个区域增强系统；北京地面站的GDOP平均值为2.7左右,GDOP值较优。
本文通過使用STK軟件對北鬥二代衛星星座進行瞭倣真,進而對其覆蓋性與可見性以及定位精度進行瞭倣真和分析,最後以北京地麵站為參攷點,倣真分析瞭北鬥二代的GDOP值。最後得齣瞭北鬥二代在亞太地區可以觀測到的衛星數量相對較多,定位精度較好,也證明瞭北鬥是一箇區域增彊繫統；北京地麵站的GDOP平均值為2.7左右,GDOP值較優。
본문통과사용STK연건대북두이대위성성좌진행료방진,진이대기복개성여가견성이급정위정도진행료방진화분석,최후이북경지면참위삼고점,방진분석료북두이대적GDOP치。최후득출료북두이대재아태지구가이관측도적위성수량상대교다,정위정도교호,야증명료북두시일개구역증강계통；북경지면참적GDOP평균치위2.7좌우,GDOP치교우。
In this paper, the constellation of BD-2 is simulated by using STK, and then, the simulation and analysis of its coverage and visibility and positioning accuracy is carried out. At last, the GDOP value of the BD-2 is simulated based on the Beijing ground station. Above all, it is conclusion that in Asia and Pacific area, the number of observed satellites is relatively large and the positioning accuracy is better. It is also proved that BD-2 is a region enhancing system;the average GDOP of the ground station in Beijing is about 2.7, and the GDOP value is preferred.
