A data archive of GPS navigation messages |
| |
| Authors: | G Beyerle M Ramatschi R Galas T Schmidt J Wickert M Rothacher |
| |
| Institution: | (1) GeoForschungsZentrum (GFZ), Potsdam, Germany |
| |
| Abstract: | Since 18 June 2007 navigation data messages transmitted by the GPS constellation are recorded by five receivers within GeoForschungsZentrum’s
global groundstation network. We describe the recording, processing, validation, analysis and archiving of the navigation
data. During the 197 days between 18 June 2007 and 31 December 2007 a total of 125,723,666 subframes were collected. By taking
into consideration that the same data set frequently is observed by two or more receivers concurrently, 65,153,955 unique
subframes could be extracted from the observations. With an estimated 88,099,200 subframes transmitted by the constellation
during this time period a data yield of about 74% was achieved. Simulation studies suggest that with two additional GPS receivers,
which are scheduled for addition to the network in 2008, about 95% of the transmitted subframes will be retrieved. The message
data archive is open to the scientific community for non-commercial purposes and may be accessed through GFZ’s Information
System and Data Center ().
|
| |
| Keywords: | GPS Navigation data Data archive Groundstation network |
| 本文献已被 SpringerLink 等数据库收录！ |
|
