详情

原文传递 Synchronous Satellite Navigation on Large Regions of the Earth's Surface and in Near Earth Space,

题名：	Synchronous Satellite Navigation on Large Regions of the Earth's Surface and in Near Earth Space,
作者：	Xiaojun, Zhong;
关键词：	GLOBAL POSITIONING SYSTEM, CARGO VEHICLES, RAILROADS, MILITARY REQUIREMENTS, LOW ORBIT TRAJECTORIES, RAIL TRANSPORTATION, NAVIGATION, POSITION FINDING, MOBILE, PRECISION, NAVIGATION SATELLITES, MARINE TRANSPORTATION, TRANSLATIONS, MAPPING, EARTH SURFACE, HARBORS, CHINA, SYNCHRONOUS SATELLITES, CHINESE LANGUAGE, INLAND WATERWAYS.
摘要：	The article discusses radio positioning navigational systems inside and outside China as well as the general status of development and performance characteristics associated with two generations of global satellite positioning navigational systems. It introduces the U.S. domestic civilian use positioning and communications system Geosat as well as the general status and performance characteristics associated with such regional satellite navigation and communications systems as the 'dual satellite high speed positioning system' proved and empirically tested by relevent Chinese departments. As far as the characterisitics of integrated GPS and regional satellite navigation systems as well as new requirements from daily increasing users are concerned, this article puts forward the synchronous 4 satellite passive type dual frequency false random code three dimensional positioning and concise dual direction digital communications' regional positioning navigation system in order to satisfy high precision positioning associated with the large region taking China's territory as its core--for instance, positioning associated with map making, exploration, sea transport, inland water transport, as well as highway and railroad transport vehicles, dispatching, and management; tracking and positioning associated with aviation and low orbit satellites, as well as guidance; vehicle management associated with railroad hubs, harbors, air fields, as well as large and middle sized cities, along with ship anchorage positioning, navigation, and so on. In conjunction with this, it supplies such dual direction digital message activities as call forwarding, calls for help, and contact between mobile users.
总页数：	31
报告类型：	科技报告