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ORCIDDevanaboyina Venkata Ratnam
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2020 – today
- 2024
[j36]Pathan Imran Khan, Devanaboyina Venkata Ratnam
, Perumal Prasad, Shaik Darga Saheb, Jonathan H. Jiang, Ghouse Basha, Kishore Pangaluru, Chanabasanagouda S. Patil:
The Influences of Indian Monsoon Phases on Aerosol Distribution and Composition over India. Remote. Sens. 16(17): 3171 (2024)- [j35]Yury Yasyukevich, Baocheng Zhang, Devanaboyina Venkata Ratnam:
Advances in GNSS Positioning and GNSS Remote Sensing. Sensors 24(4): 1200 (2024) - [j34]Suneetha Emmela, Devanaboyina Venkata Ratnam, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Michi Nishioka, Septi Perwitasari:
Statistical Analysis of Global and Regional Ionospheric Total Electron Content (TEC) Using Extreme Value Distributions. IEEE Trans. Geosci. Remote. Sens. 62: 1-8 (2024) - 2023
- [j33]D. Bhavana, N. Likhita, G. V. Madhumitha, Devanaboyina Venkata Ratnam:
Machine learning based object-level crop classification of PlanetScope data at South India Basin. Earth Sci. Informatics 16(1): 91-104 (2023) - [j32]Suneetha Emmela, Devanaboyina Venkata Ratnam, Yuichi Otsuka, Atsuki Shinbori, Takuya Sori, Michi Nishioka, Septi Perwitasari:
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). IEEE Geosci. Remote. Sens. Lett. 20: 1-5 (2023) - [j31]Shafi Shaik, Devanaboyina Venkata Ratnam:
Ant-Colony Optimization Based Energy Aware Cross Layer Routing Protocol to Improve Route Reliability in MANETs. Wirel. Pers. Commun. 129(3): 1865-1879 (2023) - [j30]Shafi Shaik, Devanaboyina Venkata Ratnam:
New Energy Aware MPR Selection for Securing OLSR Routing Scheme Under Black Hole Attack: A Machine Learning Approach. Wirel. Pers. Commun. 132(3): 1917-1931 (2023) - 2022
- [j29]T. Venkateswara Rao, Miriyala Sridhar, Devanaboyina Venkata Ratnam:
An Automatic CADI's Ionogram Scaling Software Tool for Large Ionograms Data Analytics. IEEE Access 10: 22161-22168 (2022) - [j28]Swamy KCT, Devanaboyina Venkata Ratnam, Towseef Ahmed Shaik:
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. Int. J. Satell. Commun. Netw. 40(4): 294-304 (2022) - [j27]Abhijit Dey, Manhal Rahman, Devanaboyina Venkata Ratnam, Nitin Sharma:
Automatic Detection of GNSS Ionospheric Scintillation Based on Extreme Gradient Boosting Technique. IEEE Geosci. Remote. Sens. Lett. 19: 1-5 (2022) - [j26]T. Venkateswara Rao, Miriyala Sridhar, Devanaboyina Venkata Ratnam, P. Babu Sree Harsha, I. Srivani:
A Bidirectional Long Short-Term Memory-Based Ionospheric foF2 and hmF2 Models for a Single Station in the Low Latitude Region. IEEE Geosci. Remote. Sens. Lett. 19: 1-5 (2022) - [j25]Shafi Shaik, Devanaboyina Venkata Ratnam:
A trust based energy and mobility aware routing protocol to improve infotainment services in VANETs. Peer-to-Peer Netw. Appl. 15(1): 576-591 (2022) - [j24]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:
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. Remote. Sens. 14(3): 652 (2022) - [j23]Kondaveeti Sivakrishna, Devanaboyina Venkata Ratnam, Gampala Sivavaraprasad:
A Bidirectional Deep-Learning Algorithm to Forecast Regional Ionospheric TEC Maps. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 15: 4531-4543 (2022) - [j22]Shafi Shaik, Devanaboyina Venkata Ratnam:
An Efficient Cross Layer Design of Stability Based Clustering Scheme Using Ant Colony Optimization in VANETs. Wirel. Pers. Commun. 126(4): 3001-3019 (2022) - 2021
- [j21]Adarsha Ruwali, A. J. Sravan Kumar, Kolla Bhanu Prakash, Gampala Sivavaraprasad, Devanaboyina Venkata Ratnam:
Implementation of Hybrid Deep Learning Model (LSTM-CNN) for Ionospheric TEC Forecasting Using GPS Data. IEEE Geosci. Remote. Sens. Lett. 18(6): 1004-1008 (2021) - [j20]N. C. Sri Harsha, Y. Girish Venkata Sai Anudeep, Kudarvalli Vikash, Devanaboyina Venkata Ratnam:
Performance Analysis of Machine Learning Algorithms for Smartphone-Based Human Activity Recognition. Wirel. Pers. Commun. 121(1): 381-398 (2021) - 2020
- [j19]I. Lakshmi Mallika, Devanaboyina Venkata Ratnam, Saravana Raman, Gampala Sivavaraprasad:
A New Ionospheric Model for Single Frequency GNSS User Applications Using Klobuchar Model Driven by Auto Regressive Moving Average (SAKARMA) Method Over Indian Region. IEEE Access 8: 54535-54553 (2020) - [j18]P. Babu Sree Harsha, Devanaboyina Venkata Ratnam:
Generation of Regional Ionospheric TEC Maps With EIA Nowcasting/Forecasting Capability During Geomagnetic Storm Conditions. IEEE Access 8: 57879-57890 (2020) - [j17]Kondaveeti Sivakrishna, Devanaboyina Venkata Ratnam, Miriyala Sridhar, P. Babu Sree Harsha, Gampala Sivavaraprasad:
Performance Evaluation of Adjusted Spherical Harmonics Ionospheric Model Over Indian Region. IEEE Access 8: 172610-172622 (2020) - [c1]Babu Sree Harsha Pasumarthi, Devanaboyina Venkata Ratnam, P. R. Sinha, Devendra K. Ojha, B. Suneel Kumar:
Regional ionospheric TEC data assimilation and forecasting during geomagnetic storm conditions for 17th and 18th March 2015 days. WiSEE 2020: 95-100
2010 – 2019
- 2019
- [j16]I. Srivani, Gampala Siva Vara Prasad, Devanaboyina Venkata Ratnam:
A Deep Learning-Based Approach to Forecast Ionospheric Delays for GPS Signals. IEEE Geosci. Remote. Sens. Lett. 16(8): 1180-1184 (2019) - [j15]I. Lakshmi Mallika, Devanaboyina Venkata Ratnam, Yuichi Otsuka, Gampala Sivavaraprasad, Saravana Raman:
Implementation of Hybrid Ionospheric TEC Forecasting Algorithm Using PCA-NN Method. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 12(1): 371-381 (2019) - [j14]Nuli Namassivaya, Surendra Pal, Devanaboyina Venkata Ratnam:
Modelling of FPGA-Particle Swarm Optimized GNSS Receiver for Satellite Applications. Wirel. Pers. Commun. 106(2): 879-895 (2019) - [j13]Shafi Shaik, Devanaboyina Venkata Ratnam:
A Cross Layer Cluster Based Routing Approach for Efficient Multimedia Data Dissemination with Improved Reliability in VANETs. Wirel. Pers. Commun. 107(4): 2173-2190 (2019) - 2018
- [j12]Devanaboyina Venkata Ratnam, T. Raghavendra Vishnu, P. Babu Sree Harsha:
Ionospheric Gradients Estimation and Analysis of S-Band Navigation Signals for NAVIC System. IEEE Access 6: 66954-66962 (2018) - [j11]Devanaboyina Venkata Ratnam, J. R. K. Kumar Dabbakuti, N. V. V. N. J. Sri Lakshmi:
Improvement of Indian-Regional Klobuchar Ionospheric Model Parameters for Single-Frequency GNSS Users. IEEE Geosci. Remote. Sens. Lett. 15(7): 971-975 (2018) - [j10]Shafi Shaik, Devanaboyina Venkata Ratnam, B. N. Bhandari:
An Efficient Cross Layer Routing Protocol for Safety Message Dissemination in VANETS with Reduced Routing Cost and Delay Using IEEE 802.11p. Wirel. Pers. Commun. 100(4): 1765-1774 (2018) - 2017
- [j9]Gampala Sivavaraprasad, R. Sree Padmaja, Devanaboyina Venkata Ratnam:
Mitigation of Ionospheric Scintillation Effects on GNSS Signals Using Variational Mode Decomposition. IEEE Geosci. Remote. Sens. Lett. 14(3): 389-393 (2017) - [j8]Swapna Raghunath, Devanaboyina Venkata Ratnam:
Maximum-Minimum Eigen Detector for Ionospheric Irregularities Over Low-Latitude Region. IEEE Geosci. Remote. Sens. Lett. 14(6): 901-905 (2017) - [j7]Devanaboyina Venkata Ratnam, J. R. K. Kumar Dabbakuti, Surendra Sunda:
Modeling of Ionospheric Time Delays Based on a Multishell Spherical Harmonics Function Approach. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 10(12): 5784-5790 (2017) - [j6]Sreevardhan Cheerla, Devanaboyina Venkata Ratnam, S. Ratna Meghana, V. M. S. Vishnu Varma, S. K. Altaf Hussain, K. Jaya Sai Sravanth:
Pathloss Study for 61 GHZ Wave D2D Communications in Indoor Environment. Wirel. Pers. Commun. 97(1): 387-395 (2017) - 2016
- [j5]Miriyala Sridhar, K. Padma Raju, Ch. Srinivasa Rao, Devanaboyina Venkata Ratnam:
Mitigation of ionospheric scintillations for GPS signals under geomagnetic storm conditions using LMS adaptive filter. Int. J. Inf. Commun. Technol. 9(4): 389-407 (2016) - [j4]Swapna Raghunath, Devanaboyina Venkata Ratnam:
Ionospheric Spatial Gradient Detector Based on GLRT Using GNSS Observations. IEEE Geosci. Remote. Sens. Lett. 13(6): 875-879 (2016) - [j3]P. Babu Sree Harsha, Devanaboyina Venkata Ratnam:
Implementation of Advanced Carrier Tracking Algorithm Using Adaptive-Extended Kalman Filter for GNSS Receivers. IEEE Geosci. Remote. Sens. Lett. 13(9): 1280-1284 (2016) - 2015
- [j2]Swapna Raghunath, Devanaboyina Venkata Ratnam:
Detection of Low-Latitude Ionospheric Irregularities From GNSS Observations. IEEE J. Sel. Top. Appl. Earth Obs. Remote. Sens. 8(11): 5171-5176 (2015) - 2012
- [j1]Devanaboyina Venkata Ratnam, A. D. Sarma:
Modeling of Low-Latitude Ionosphere Using GPS Data With SHF Model. IEEE Trans. Geosci. Remote. Sens. 50(3): 972-980 (2012)
Coauthor Index
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