摘要
卫星导航接收机在某些特殊地域使用时,集成了GPS和GLONASS的双模接收机可以弥补单模接收机的劣势,从而明显提高定位的可靠性及可用性。而GPS和GLONASS时间系统的不一致性对GPS/GLONASS双模接收机有重要制约,对其定位精度产生了一定影响。对GPS和GLONASS的时间系统差异进行了研究,给出对其一致性分析的具体方法。可推广至多导航模块的接收机中,从而使定位精度更加精准可靠。
When satellite navigation receivers are used in some special zone,integrated GPS and GLONASS dual-mode receiver will compensate for the disadvantages of single-mode receivers,thereby significantly improve positioning reliability and availability.The inconsistency of GPS and GLONASS time systems has an important constraint for the GPS/GLONASS dual-mode receiver,which has some impact on its positioning accuracy.This paper studies the differences of GPS and GLONASS time systems,and presents concrete methods for its consistency analysis.These methods can be extended to the receiver in the navigation module,and thereby the positioning accuracy will be improved.
出处
《无线电工程》
2010年第6期51-53,共3页
Radio Engineering
关键词
双模接收机
时间系统
钟差
定位精度
dual-mode receiver
time system
clock offset
positioning accuracy
