The interoperable Global Navigation Satellite Systems Space S... - 9789211304367

The interoperable Global Navigation Satellite Systems Space Service volumeAuthor(s): United Nations Office for Outer Space Affairs\nFormat: Paperback\nPublisher: United Nations, United States\nImprint: United Nations\nISBN-13: 9789211304367, 978-9211304367\nSynopsis\nGlobal navigation satellite systems (GNSS), which were originally designed to provide positioning, velocity, and timing services for terrestrial users, are now increasingly utilized for autonomous navigation in space as well. Historically, most space users have been located at low altitudes, where GNSS signal reception is similar to that on the ground. More recently, however, users are relying on these signals at high altitudes, near to or above the GNSS constellations themselves. The availability and performance of GNSS signals at high altitude is documented as the GNSS Space Service Volume (SSV). While different definitions of the SSV exist and may continue to exist for the different service providers, within the contt