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导航星全球定位系统(NAVSTAR/GPS)于令年六月已将其计划的24领导航卫星全部发射升空送入轨道。整个系统已经完全正常运行,它的全球、全天候、高精度、连续定位的功能已真正全部实现,这对广大的卫星定位导航用户来说,的确是件振奋人心的喜讯。 随着此系统的逐步完成,世界许多工厂生产了多种类型的定位导航仪器。单就航海型的卫星导航仪而言,已不下数十种之多。这么多类型的仪器,尽管总体功能都大体类似,但是实现总体功能的具体设计方法却有较大的差异。分析我国卫星导航仪市
The navigational satellite global positioning system (NAVSTAR / GPS) launched all its planned 24 satellite navigation systems into orbit in June of that year. The whole system has been completely normal operation, its global, all-weather, high-precision, continuous positioning function has been truly all realized, which for the majority of satellite navigation users, it is indeed an encouraging news. With the gradual completion of this system, many types of Positioning and Navigation Instrumentation have been produced in many factories around the world. As far as sailing satellite navigation is concerned, no fewer than a dozen. With so many types of instruments, although overall functions are generally similar, there are large differences in the exact design of the overall function. Analysis of China’s satellite navigation market