The GPS (Global Positioning System) Space Service Volume (SSV) was first defined to protect the GPS main lobe signals from changes from block to block. First developed as a concept by NASA in 2000, it has been adopted for the GPS III block of satellites, and is being used well beyond the current specification to enable increased navigation performance for key missions like GOES-R. NASA has engaged the US IFOR (Interagency Forum Operational Requirements) process to adopt a revised requirement to protect this increased and emerging use. Also, NASA is working through the UN International Committee on GNSS (Global Navigation Satellite System) to develop an interoperable multi-GNSS SSV in partnership with all of the foreign GNSS providers.
Refining the GPS Space Service Volume (SSV) and Building a Multi-GNSS SSV
NASA Space Communication and Navigation (SCaN) Workshop on Emerging Technologies for Autonomous Space Navigation ; 2017 ; Washington, DC, United States
2017-02-16
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