Implementation of Advanced Carrier Tracking Algorithm Using Adaptive-Extended Kalman Filter for GNSS Receivers. - P. Babu Sree Harsha; Devanaboyina Venkata Ratnam (IEEE Geosci. Remote. Sens. Lett., 2016)

Ionospheric Gradients Estimation and Analysis of S-Band Navigation Signals for NAVIC System. - Devanaboyina Venkata Ratnam; T. Raghavendra Vishnu; P. Babu Sree Harsha (IEEE Access, 2018)

Regional ionospheric TEC data assimilation and forecasting during geomagnetic storm conditions for 17th and 18th March 2015 days. - Babu Sree Harsha Pasumarthi; Devanaboyina Venkata Ratnam; P. R. Sinha; Devendra K. Ojha; B. Suneel Kumar (WiSEE, 2020)

Generation of Regional Ionospheric TEC Maps With EIA Nowcasting/Forecasting Capability During Geomagnetic Storm Conditions. - P. Babu Sree Harsha; Devanaboyina Venkata Ratnam (IEEE Access, 2020)

Performance Evaluation of Adjusted Spherical Harmonics Ionospheric Model Over Indian Region. - Kondaveeti Sivakrishna; Devanaboyina Venkata Ratnam; Miriyala Sridhar; P. Babu Sree Harsha; Gampala Sivavaraprasad (IEEE Access, 2020)

A Bidirectional Long Short-Term Memory-Based Ionospheric foF2 and hmF2 Models for a Single Station in the Low Latitude Region. - T. Venkateswara Rao; Miriyala Sridhar; Devanaboyina Venkata Ratnam; P. Babu Sree Harsha; I. Srivani (IEEE Geosci. Remote. Sens. Lett., 2022)