Implementation of hybrid deep learning model (LSTM-CNN) for ionospheric TEC forecasting using GPS data A Ruwali, AJS Kumar, KB Prakash, G Sivavaraprasad, DV Ratnam IEEE Geoscience and Remote Sensing Letters 18 (6), 1004-1008, 2020 | 99 | 2020 |
A deep learning-based approach to forecast ionospheric delays for GPS signals I Srivani, GSV Prasad, DV Ratnam IEEE Geoscience and Remote Sensing Letters 16 (8), 1180-1184, 2019 | 92 | 2019 |
Modelling of low-latitude ionosphere using modified planar fit method for GAGAN AD Sarma, DV Ratnam, DK Reddy IET radar, sonar & navigation 3 (6), 609-619, 2009 | 58 | 2009 |
Implementation of hybrid ionospheric TEC forecasting algorithm using PCA-NN method IL Mallika, DV Ratnam, Y Ostuka, G Sivavaraprasad, S Raman IEEE Journal of Selected Topics in Applied Earth Observations and Remote …, 2018 | 54 | 2018 |
Development of multivariate ionospheric TEC forecasting algorithm using linear time series model and ARMA over low-latitude GNSS station DV Ratnam, Y Otsuka, G Sivavaraprasad, JRKK Dabbakuti Advances in Space Research 63 (9), 2848-2856, 2019 | 53 | 2019 |
Performance evaluation of ionospheric time delay forecasting models using GPS observations at a low-latitude station G Sivavaraprasad, DV Ratnam Advances in Space Research 60 (2), 475-490, 2017 | 44 | 2017 |
A cross layer cluster based routing approach for efficient multimedia data dissemination with improved reliability in VANETs S Shafi, D Venkata Ratnam Wireless Personal Communications 107 (4), 2173-2190, 2019 | 42 | 2019 |
Mitigation of ionospheric scintillation effects on GNSS signals using variational mode decomposition G Sivavaraprasad, RS Padmaja, DV Ratnam IEEE Geoscience and Remote Sensing Letters 14 (3), 389-393, 2017 | 38 | 2017 |
Performance evaluation of selected ionospheric delay models during geomagnetic storm conditions in low-latitude region DV Ratnam, AD Sarma, VS Srinivas, P Sreelatha Radio Science 46 (03), 1-6, 2011 | 37 | 2011 |
Signatures of equatorial plasma bubbles and ionospheric scintillations from magnetometer and GNSS observations in the Indian longitudes during the space weather events of early … RK Vankadara, SK Panda, C Amory-Mazaudier, R Fleury, ... Remote Sensing 14 (3), 652, 2022 | 36 | 2022 |
Modeling of low-latitude ionosphere using GPS data with SHF model DV Ratnam, AD Sarma IEEE transactions on Geoscience and Remote Sensing 50 (3), 972-980, 2011 | 36 | 2011 |
Machine learning algorithm to forecast ionospheric time delays using Global Navigation satellite system observations L Mallika, DV Ratnam, S Raman, G Sivavaraprasad Acta Astronautica 173, 221-231, 2020 | 32 | 2020 |
Automatic ionospheric scintillation detector for global navigation satellite system receivers DV Ratnam, G Sivavaraprasad, J Lee IET Radar, Sonar & Navigation 9 (6), 702-711, 2015 | 28 | 2015 |
An efficient cross layer routing protocol for safety message dissemination in VANETS with reduced routing cost and delay using IEEE 802.11 p S Shaik, D Venkata Ratnam, BN Bhandari Wireless Personal Communications 100 (4), 1765-1774, 2018 | 27 | 2018 |
Modeling and analysis of GPS-TEC low latitude climatology during the 24th solar cycle using empirical orthogonal functions JRKK Dabbakuti, DV Ratnam Advances in Space Research 60 (8), 1751-1764, 2017 | 27 | 2017 |
Detection of low-latitude ionospheric irregularities from GNSS observations S Raghunath, DV Ratnam IEEE Journal of Selected Topics in Applied Earth Observations and Remote …, 2015 | 27 | 2015 |
Analysis of ionosphere variability over low-latitude GNSS stations during 24th solar maximum period DV Ratnam, G Sivavaraprasad, NL Devi Advances in Space Research 60 (2), 419-434, 2016 | 26 | 2016 |
A new ionospheric model for single frequency GNSS user applications using Klobuchar model driven by auto regressive moving average (SAKARMA) method over Indian region IL Mallika, DV Ratnam, S Raman, G Sivavaraprasad IEEE Access 8, 54535-54553, 2020 | 25 | 2020 |
Ionospheric gradients estimation and analysis of S-band navigation signals for NAVIC system DV Ratnam, TR Vishnu, PBS Harsha IEEE Access 6, 66954-66962, 2018 | 25 | 2018 |
Improvement of Indian-regional Klobuchar ionospheric model parameters for single-frequency GNSS users DV Ratnam, JRKK Dabbakuti, NS Lakshmi IEEE Geoscience and Remote Sensing Letters 15 (7), 971-975, 2018 | 25 | 2018 |