https://elib.dlr.de/111331/
electronic library - Accuracy of Current and Future Satellite Navigation Systems
Deutsches Zentrum für Luft- und Raumfahrt e.V., eLib - DLR electronic library
satellite navigation systemselectronic libraryaccuracycurrentfuture
https://bharatshakti.in/elena-geo-systems-launches-indigenous-chip-for-satellite-navigation/
Elena Geo Systems Launches Indigenous Chip For Satellite Navigation - Bharat Shakti
Apr 15, 2023 - Elena Geo Systems, a Bengaluru-based space startup incubated in IIT-Kharagpur, has unveiled an indigenously designed NavIC chip that can use India's navigation...
satellite navigationelenageosystemslaunches