1. Doppler utilized kalman estimation (DUKE) of ionosphere;Acharya;Advances in Space Research,2013
2. GPS navigation algorithms;Axelrad,1996
3. Degradation of navigational accuracy with global positioning system during periods of scintillation at equatorial latitudes;Bandyopadhayay;Electronics Letters,1997
4. Multipath effects;Braasch,1996
5. Performance of Standalone GPS;Conley,2006