radio-positioning navigation 中文意思是什麼
radio-positioning navigation
解釋
無線電定位導航- radio : n. 1. 無線電訊[電報，電話]；無線電，射電。2. 無線電廣播；無線電（廣播）臺。3. 收音機。vt. ,vi. 用無線電傳送[廣播]；（向…）作無線電廣播[傳送]；用X射線拍照；用鐳醫治。
- navigation : n. 1. 航行；導航；領航；航海[航空]術。2. 〈集合詞〉船。3. 〈古語〉航路；海上交通。adj. -al
-
The new positioning system which employs three geostationary satellites emitting radio signals to users just like the gps satellites do, and allows the users receiver to solve position based on the received radio signal as well as the reading of electronic map, the drawbacks of double - star navigation system are overcome
三顆同步導航衛星像gps衛星那樣向用戶播發導航電文，用戶接收機根據這些導航電文信息以及電子地圖高程數據，像gps接收機那樣解算用戶位置，從而克服了雙星定位的兩大缺陷。 -
The targeted readership of digital communication world includes : managers and technical personnel in administrative departments of various levels of the ministry of information industry, ministry of radio, film and television, ministry of aviation and space, and defense industry ; users of proprietary networks of maritime, transportation, petroleum, coal, water conservancy and public security ; communication operators, equipment manufacturers, equipment providers, system integrators, network service providers and users ; equipment manufacturers, operators of satcom, navigation and positioning, and earth observation ; enterprises of radio and television, all departments of radio, film and television at prefecture or county level, and relevant institutions and operators ; and experts, scholars, technical and engineering personnel, teachers and students of science research institutions, r & d organizations and universities
《數字通信世界》的讀者對象：信息產業部、廣電系統、航空航天系統、國防軍工系統各級管理部門的主管及技術人員；海洋、交通、石油、電力、煤炭、水利、公安等專網用戶；通信運營商，設備製造商、設備供應商、系統集成商，網路服務商及使用部門；衛星通信、導航定位、對地觀測等設備商、運營商；廣播、電視企業和全國各地市縣級廣播電視局、臺、站等相關機構及運營商；科研機構、研發部門、專業院校的專家學者及廣大工程技術人員和師生。
分享友人