P. B. S. Harsha

Detection of ionospheric anomalies during intense space weather over a low-latitude GNSS station

V. Sharvani, G. Sivavaraprasad, D. Ratnam, 2017, Acta Geodaetica et Geophysica.

Ionospheric Gradients Estimation and Analysis of S-Band Navigation Signals for NAVIC System

D. Venkata Ratnam, P. Babu Sree Harsha, T. Raghavendra Vishnu, 2018, IEEE Access.

Generation of Regional Ionospheric TEC Maps With EIA Nowcasting/Forecasting Capability During Geomagnetic Storm Conditions

D. Venkata Ratnam, P. Babu Sree Harsha, D. Ratnam, 2020, IEEE Access.

Comparative analysis of ionosonde spread F and GPS ionospheric scintillations over Hyderabad

D. Ratnam, M. Sridhar, T. V. Rao, 2021 .

Kriging‐based ionospheric TEC, ROTI and amplitude scintillation index ( S 4 ) maps for India

D. Venkata Ratnam, M. Sridhar, D. Ratnam, 2020, IET Radar, Sonar & Navigation.

A Bidirectional Long Short-Term Memory-Based Ionospheric foF2 and hmF2 Models for a Single Station in the Low Latitude Region

D. Venkata Ratnam, P. Babu Sree Harsha, I. Srivani, 2022, IEEE Geoscience and Remote Sensing Letters.

Broadcast ionospheric delay correction algorithm using reduced order adjusted spherical harmonics function for single-frequency GNSS receivers

D. Ratnam, M. Sridhar, P. B. S. Harsha, 2021, Acta Geophysica.

Performance Evaluation of Adjusted Spherical Harmonics Ionospheric Model Over Indian Region

P. Babu Sree Harsha, Kondaveeti Siva Krishna, Devanaboyina Venkata Ratnam, 2020, IEEE Access.