NASA Goddard has been investing in technology demonstrations of a beacon service, now called Next Generation Broadcast Services (NGBS). NGBS is a global, space-based, communications and navigation service for users of Global Navigation Satellite Systems (GNSS) and the Tracking and Data Relay Satellite System (TDRSS). NGBS will provide an S-band beacon messaging source and radio navigation available to users at orbital altitudes 1400 km and below, increasing the autonomy and resiliency of onboard communication and navigation. NGBS will deliver both one-way radiometric (Doppler and pseudorange) and fast forward data transport services to users. Portions of the overall forward data volume will be allocated for fixed message types while the remaining data volume will be left for user forward command data. The NGBS signal will reside within the 2106.43 MHz spectrum currently allocated for the Space Networks multiple access forward (MAF) service and a live service demonstration is currently being planned via the 2nd and 3rd generation TDRS satellites.
Integrating Communication and Navigation: Next Generation Broadcast Service (NGBS)
2017
20 pages
Report
Keine Angabe
Englisch
Space Technology , Space communication , Spacecraft communication , Navigation satellites , Communication satellites , Autonomy , Tdr satellites , Radio beacons , Systems integration , Data systems , Messages , Nasa space programs , Multiple access , Onboard equipment , Radio navigation , Radiometers , Satellite networks , Ground stations , Superhigh frequencies , Ultrahigh frequencies
Schifffahrt - Navigation - Impacts of Next Generation Ship Navigation and Communication Systems
Online Contents | 2006
|An Ionosphere Broadcast Model for Next Generation GNSS
British Library Conference Proceedings | 2015
|Next Generation Satellite Navigation from LEO
British Library Conference Proceedings | 2021
|A Study on Navigation and Communication Satellite System for the Next Generation
British Library Conference Proceedings | 1998
|