G. Sivavaraprasad

发表

Modelling and forecasting of ionospheric TEC irregularities over a low latitude GNSS station

G. Sivavaraprasad, D. Venkata Ratnam, M. Sridhar, 2020, Astrophysics and Space Science.

Development of multivariate ionospheric TEC forecasting algorithm using linear time series model and ARMA over low-latitude GNSS station

J R K Kumar Dabbakuti, Y. Otsuka, G. Sivavaraprasad, 2019, Advances in Space Research.

Analysis of ionosphere variability over low-latitude GNSS stations during 24th solar maximum period

G. Sivavaraprasad, D. Ratnam, N. L. Devi, 2017 .

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.

ARMA Ionospheric Prediction Model for GAGAN Applications

G. Sivavaraprasad, D. Ratnam, Harshali Mane, 2014 .

Forecasting of Ionospheric TEC Values Using Holt-Winters Method Over Low Latitude Station

G. Sivavaraprasad, D. Ratnam, Harshali Mane, 2014 .

Multicomponent Analysis of Ionospheric Scintillation Effects Using the Synchrosqueezing Technique for Monitoring and Mitigating their Impact on GNSS Signals

Y. Otsuka, G. Sivavaraprasad, D. Ratnam, 2018, Journal of Navigation.

Performance analysis of IRI-2016 model TEC predictions over Northern and Southern Hemispheric IGS stations during descending phase of solar cycle 24

G. Sivavaraprasad, D. Ratnam, Jean de Dieu Nibigira, 2021, Acta Geophysica.

Spatial and temporal characteristics of ionospheric total electron content over Indian equatorial and low-latitude GNSS stations

Y. Otsuka, N. Tripathi, G. Sivavaraprasad, 2018, 2018 Conference on Signal Processing And Communication Engineering Systems (SPACES).

Support Vector Regression model to predict TEC for GNSS signals

G. Sivavaraprasad, K. Sivakrishna, D. Ratnam, 2022, Acta Geophysica.

Performance analysis of Neural Networks with IRI-2016 and IRI-2012 models over Indian low-latitude GPS stations

S. Raman, G. Sivavaraprasad, D. Ratnam, 2020, Astrophysics and Space Science.

Short-term forecasting of ionospheric total electron content over a low-latitude global navigation satellite system station

G. Sivavaraprasad, D. Ratnam, D. Ratnam, 2017 .

Performance evaluation of ionospheric time delay forecasting models using GPS observations at a low-latitude station

D. Venkata Ratnam, G. Sivavaraprasad, G. Sivavaraprasad, 2017 .

A Novel Hybrid Machine Learning Model to Forecast Ionospheric TEC Over Low-latitude GNSS stations

G. Sivavaraprasad, D. Venkata Ratnam, K. Sivakrishna, 2021, Advances in Space Research.

Characteristics of ionospheric scintillation climatology over Indian low-latitude region during the 24th solar maximum period

D. Venkata Ratnam, Sarat K. Kotamraju, S. K. Kotamraju, 2019, Geodesy and Geodynamics.

Automatic ionospheric scintillation detector for global navigation satellite system receivers

Jiyun Lee, Devanaboyina Venkata Ratnam, G. Sivavaraprasad, 2015 .

Performance evaluation of neural network TEC forecasting models over equatorial low-latitude Indian GNSS station

D. Sreenivasarao, G. Sivavaraprasad, M. Sridhar, 2020 .

Machine learning algorithm to forecast ionospheric time delays using Global Navigation satellite system observations

D. Venkata Ratnam, G. Sivavaraprasad, Saravana Raman, 2020 .

A Bidirectional Deep-Learning Algorithm to Forecast Regional Ionospheric TEC Maps

G. Sivavaraprasad, D. Venkata Ratnam, K. Sivakrishna, 2022, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

Implementation of Hybrid Ionospheric TEC Forecasting Algorithm Using PCA-NN Method

D. Venkata Ratnam, I. Lakshmi Mallika, Yuichi Ostuka, 2019, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing.

Implementation of Hybrid Deep Learning Model (LSTM-CNN) for Ionospheric TEC Forecasting Using GPS Data

Kolla Bhanu Prakash, D. Venkata Ratnam, A. J. Sravan Kumar, 2021, IEEE Geoscience and Remote Sensing Letters.

Implementation of VARMA Model for Ionospheric TEC Forecast over an Indian GNSS Station

G. Sivavaraprasad, S. Salma, B. T. P. Madhav, 2020, 2020 5th International Conference on Devices, Circuits and Systems (ICDCS).

A New Ionospheric Model for Single Frequency GNSS User Applications Using Klobuchar Model Driven by Auto Regressive Moving Average (SAKARMA) Method Over Indian Region

D. Venkata Ratnam, Gampala Sivavaraprasad, I. Lakshmi Mallika, 2020, IEEE Access.

An improved NeQuick-G global ionospheric TEC model with a machine learning approach

G. Sivavaraprasad, D. Venkata Ratnam, K. Sivakrishna, 2023, GPS Solutions.

Performance Evaluation of Adjusted Spherical Harmonics Ionospheric Model Over Indian Region

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