Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Gnss World of China》 2009-04
Add to Favorite Get Latest Update

Important Development in the Modernization of GPS——GPS L5 and L3 signal are turned on

CHEN Jun-yong (State Bureau of Surveying and Mapping,Beijing 100830 China)  
The launch of GPS IIF type satellite has been delayed long time since 2000 due to technical reasons.Now a GPS IIR20-(M) satellite,it also belongs to the one of the GPS modernization satellite series,is finally successfully launched in March 24,2009.The new GPS satellite has the ability to transmit LI,L2,L3 and L5 frequencies.This event is the milestone of the GPS modernization.
【CateGory Index】: P228.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved