Modeling of Low-Latitude Ionosphere Using GPS Data With SHF Model. - Devanaboyina Venkata Ratnam; A. D. Sarma (IEEE Trans. Geosci. Remote. Sens., 2012)

Detection of Low-Latitude Ionospheric Irregularities From GNSS Observations. - Swapna Raghunath; Devanaboyina Venkata Ratnam (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2015)

Mitigation of ionospheric scintillations for GPS signals under geomagnetic storm conditions using LMS adaptive filter. - Miriyala Sridhar; K. Padma Raju; Ch. Srinivasa Rao; Devanaboyina Venkata Ratnam (Int. J. Inf. Commun. Technol., 2016)

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 Spatial Gradient Detector Based on GLRT Using GNSS Observations. - Swapna Raghunath; Devanaboyina Venkata Ratnam (IEEE Geosci. Remote. Sens. Lett., 2016)

Maximum-Minimum Eigen Detector for Ionospheric Irregularities Over Low-Latitude Region. - Swapna Raghunath; Devanaboyina Venkata Ratnam (IEEE Geosci. Remote. Sens. Lett., 2017)

Mitigation of Ionospheric Scintillation Effects on GNSS Signals Using Variational Mode Decomposition. - Gampala Sivavaraprasad; R. Sree Padmaja; Devanaboyina Venkata Ratnam (IEEE Geosci. Remote. Sens. Lett., 2017)

Modeling of Ionospheric Time Delays Based on a Multishell Spherical Harmonics Function Approach. - Devanaboyina Venkata Ratnam; J. R. K. Kumar Dabbakuti; Surendra Sunda (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2017)

Pathloss Study for 61 GHZ Wave D2D Communications in Indoor Environment. - Sreevardhan Cheerla; Devanaboyina Venkata Ratnam; S. Ratna Meghana; V. M. S. Vishnu Varma; S. K. Altaf Hussain; K. Jaya Sai Sravanth (Wirel. Pers. Commun., 2017)

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)

Improvement of Indian-Regional Klobuchar Ionospheric Model Parameters for Single-Frequency GNSS Users. - Devanaboyina Venkata Ratnam; J. R. K. Kumar Dabbakuti; N. V. V. N. J. Sri Lakshmi (IEEE Geosci. Remote. Sens. Lett., 2018)

An Efficient Cross Layer Routing Protocol for Safety Message Dissemination in VANETS with Reduced Routing Cost and Delay Using IEEE 802.11p. - Shafi Shaik; Devanaboyina Venkata Ratnam; B. N. Bhandari (Wirel. Pers. Commun., 2018)

A Deep Learning-Based Approach to Forecast Ionospheric Delays for GPS Signals. - I. Srivani; Gampala Siva Vara Prasad; Devanaboyina Venkata Ratnam (IEEE Geosci. Remote. Sens. Lett., 2019)

Implementation of Hybrid Ionospheric TEC Forecasting Algorithm Using PCA-NN Method. - I. Lakshmi Mallika; Devanaboyina Venkata Ratnam; Yuichi Otsuka; Gampala Sivavaraprasad; Saravana Raman (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2019)

Modelling of FPGA-Particle Swarm Optimized GNSS Receiver for Satellite Applications. - Nuli Namassivaya; Surendra Pal; Devanaboyina Venkata Ratnam (Wirel. Pers. Commun., 2019)

A Cross Layer Cluster Based Routing Approach for Efficient Multimedia Data Dissemination with Improved Reliability in VANETs. - Shafi Shaik; Devanaboyina Venkata Ratnam (Wirel. Pers. Commun., 2019)

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 New Ionospheric Model for Single Frequency GNSS User Applications Using Klobuchar Model Driven by Auto Regressive Moving Average (SAKARMA) Method Over Indian Region. - I. Lakshmi Mallika; Devanaboyina Venkata Ratnam; Saravana Raman; Gampala Sivavaraprasad (IEEE Access, 2020)

Implementation of Hybrid Deep Learning Model (LSTM-CNN) for Ionospheric TEC Forecasting Using GPS Data. - Adarsha Ruwali; A. J. Sravan Kumar; Kolla Bhanu Prakash; Gampala Sivavaraprasad; Devanaboyina Venkata Ratnam (IEEE Geosci. Remote. Sens. Lett., 2021)

Performance Analysis of Machine Learning Algorithms for Smartphone-Based Human Activity Recognition. - N. C. Sri Harsha; Y. Girish Venkata Sai Anudeep; Kudarvalli Vikash; Devanaboyina Venkata Ratnam (Wirel. Pers. Commun., 2021)

An Automatic CADI's Ionogram Scaling Software Tool for Large Ionograms Data Analytics. - T. Venkateswara Rao; Miriyala Sridhar; Devanaboyina Venkata Ratnam (IEEE Access, 2022)

Double difference method with zero and short base length carrier phase measurements for Navigation with Indian Constellation satellites L5 (1176.45 MHz) signal quality analysis. - Swamy KCT; Devanaboyina Venkata Ratnam; Towseef Ahmed Shaik (Int. J. Satell. Commun. Netw., 2022)

Automatic Detection of GNSS Ionospheric Scintillation Based on Extreme Gradient Boosting Technique. - Abhijit Dey; Manhal Rahman; Devanaboyina Venkata Ratnam; Nitin Sharma 007 (IEEE Geosci. Remote. Sens. Lett., 2022)

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)

A trust based energy and mobility aware routing protocol to improve infotainment services in VANETs. - Shafi Shaik; Devanaboyina Venkata Ratnam (Peer-to-Peer Netw. Appl., 2022)

Signatures of Equatorial Plasma Bubbles and Ionospheric Scintillations from Magnetometer and GNSS Observations in the Indian Longitudes during the Space Weather Events of Early September 2017. - Ram Kumar Vankadara; Sampad Kumar Panda; Christine Amory-Mazaudier; Rolland Fleury; Devanaboyina Venkata Ratnam; Tarun Kumar Pant; Punyawi Jamjareegulgarn; Mohd Anul Haq; Daniel I. Okoh; Gopi Krishna Seemala (Remote. Sens., 2022)

A Bidirectional Deep-Learning Algorithm to Forecast Regional Ionospheric TEC Maps. - Kondaveeti Sivakrishna; Devanaboyina Venkata Ratnam; Gampala Sivavaraprasad (IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens., 2022)

An Efficient Cross Layer Design of Stability Based Clustering Scheme Using Ant Colony Optimization in VANETs. - Shafi Shaik; Devanaboyina Venkata Ratnam (Wirel. Pers. Commun., 2022)

An Extreme Value Analysis of Long-Term GNSS Ionospheric Total Electron Content Data Observed at Japan Grid Point Location (34.95° N and 134.05° E). - Suneetha Emmela; Devanaboyina Venkata Ratnam; Yuichi Otsuka; Atsuki Shinbori; Takuya Sori; Michi Nishioka; Septi Perwitasari (IEEE Geosci. Remote. Sens. Lett., 2023)

Machine learning based object-level crop classification of PlanetScope data at South India Basin. - D. Bhavana; N. Likhita; G. V. Madhumitha; Devanaboyina Venkata Ratnam (Earth Sci. Informatics, 2023)

Ant-Colony Optimization Based Energy Aware Cross Layer Routing Protocol to Improve Route Reliability in MANETs. - Shafi Shaik; Devanaboyina Venkata Ratnam (Wirel. Pers. Commun., 2023)

New Energy Aware MPR Selection for Securing OLSR Routing Scheme Under Black Hole Attack: A Machine Learning Approach. - Shafi Shaik; Devanaboyina Venkata Ratnam (Wirel. Pers. Commun., 2023)

Statistical Analysis of Global and Regional Ionospheric Total Electron Content (TEC) Using Extreme Value Distributions. - Suneetha Emmela; Devanaboyina Venkata Ratnam; Yuichi Otsuka; Atsuki Shinbori; Takuya Sori; Michi Nishioka; Septi Perwitasari (IEEE Trans. Geosci. Remote. Sens., 2024)

Advances in GNSS Positioning and GNSS Remote Sensing. - Yury Yasyukevich; Baocheng Zhang; Devanaboyina Venkata Ratnam (Sensors, 2024)

The Influences of Indian Monsoon Phases on Aerosol Distribution and Composition over India. - Pathan Imran Khan; Devanaboyina Venkata Ratnam; Perumal Prasad; Shaik Darga Saheb; Jonathan H. Jiang; Ghouse Basha; Kishore Pangaluru; Chanabasanagouda S. Patil (Remote. Sens., 2024)

Superposed epoch analysis of GPS ionospheric TEC and scintillations over low latitude Indian region during multiple geomagnetic storm events. - G. Venkata Ramana; Miriyala Sridhar; T. Venkateswara Rao; Devanaboyina Venkata Ratnam (Earth Sci. Informatics, 2025)