Hasil Pencarian - D. Venkata Ratnam

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  1. 1
    Estimation and analysis of user IPP delays using bilinear model for satellite-based augmented navigation systems

    Estimation and analysis of user IPP delays using bilinear model for satellite-based augmented navigation systems oleh D. Venkata Ratnam

    Diterbitkan 2013-07-01
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  2. 2
    Determination of NavIC differential code biases using GPS and NavIC observations

    Determination of NavIC differential code biases using GPS and NavIC observations oleh K. Siva Krishna, D. Venkata Ratnam

    Diterbitkan 2020-03-01
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  3. 3
    Bi-LSTM based deep learning method for 5G signal detection and channel estimation

    Bi-LSTM based deep learning method for 5G signal detection and channel estimation oleh D Venkata Ratnam, K Nageswara Rao

    Diterbitkan 2021-12-01
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  4. 4
    Analysis of differential code biases and inter-system biases for GPS and NavIC satellite constellations

    Analysis of differential code biases and inter-system biases for GPS and NavIC satellite constellations oleh K. Siva Krishna, D. Venkata Ratnam

    Diterbitkan 2021-08-01
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  5. 5
    Generation of Regional Ionospheric TEC Maps With EIA Nowcasting/Forecasting Capability During Geomagnetic Storm Conditions

    Generation of Regional Ionospheric TEC Maps With EIA Nowcasting/Forecasting Capability During Geomagnetic Storm Conditions oleh P. Babu Sree Harsha, D. Venkata Ratnam

    Diterbitkan 2020-01-01
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  6. 6
    An Automatic CADI’s Ionogram Scaling Software Tool for Large Ionograms Data Analytics

    An Automatic CADI’s Ionogram Scaling Software Tool for Large Ionograms Data Analytics oleh T. Venkateswara Rao, M. Sridhar, D. Venkata Ratnam

    Diterbitkan 2022-01-01
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  7. 7
    Applicability of NeQuick G ionospheric model for single-frequency GNSS users over India

    Applicability of NeQuick G ionospheric model for single-frequency GNSS users over India oleh K Siri Lakshatha, D Venkata Ratnam, K Sivakrishna

    Diterbitkan 2022-02-01
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  8. 8
    A Review on design of low noise amplifiers for global navigational satellite system

    A Review on design of low noise amplifiers for global navigational satellite system oleh Ch Priyanka, D Venkata Ratnam, Sai Krishna Santosh G

    Diterbitkan 2021-10-01
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  9. 9
    Ionospheric Gradients Estimation and Analysis of S-Band Navigation Signals for NAVIC System

    Ionospheric Gradients Estimation and Analysis of S-Band Navigation Signals for NAVIC System oleh D. Venkata Ratnam, T. Raghavendra Vishnu, P. Babu Sree Harsha

    Diterbitkan 2018-01-01
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  10. 10
    Ionospheric time delay corrections based on the extended single layer model over low latitude region

    Ionospheric time delay corrections based on the extended single layer model over low latitude region oleh Sahithi Karanam, D. Venkata Ratnam, J.R.K. Kumar Dabbakuti

    Diterbitkan 2019-05-01
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  11. 11
    Ionospheric forecasting model using fuzzy logic-based gradient descent method

    Ionospheric forecasting model using fuzzy logic-based gradient descent method oleh D. Venkata Ratnam, G. Vindhya, J.R.K. Kumar Dabbakuti

    Diterbitkan 2017-09-01
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  12. 12
    A New Ionospheric Model for Single Frequency GNSS User Applications Using Klobuchar Model Driven by Auto Regressive Moving Average (SAKARMA) Method Over Indian Region

    A New Ionospheric Model for Single Frequency GNSS User Applications Using Klobuchar Model Driven by Auto Regressive Moving Average (SAKARMA) Method Over Indian Region oleh I. Lakshmi Mallika, D. Venkata Ratnam, Saravana Raman, Gampala Sivavaraprasad

    Diterbitkan 2020-01-01
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  13. 13
    Modelling of ionospheric time delays based on adjusted spherical harmonic analysis

    Modelling of ionospheric time delays based on adjusted spherical harmonic analysis oleh J R K Kumar Dabbakuti, D. Venkata Ratnam, Surendra Sunda

    Diterbitkan 2016-04-01
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  14. 14
    Characteristics of ionospheric scintillation climatology over Indian low-latitude region during the 24th solar maximum period

    Characteristics of ionospheric scintillation climatology over Indian low-latitude region during the 24th solar maximum period oleh K. Sahithi, M. Sridhar, Sarat K. Kotamraju, K.Ch. Sri Kavya, G. Sivavaraprasad, D.Venkata Ratnam, Ch. Deepthi

    Diterbitkan 2019-03-01
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  15. 15
    Forecasting Ionospheric TEC Changes Associated with the December 2019 and June 2020 Solar Eclipses: A Comparative Analysis of OKSM, FFNN, and DeepAR Models

    Forecasting Ionospheric TEC Changes Associated with the December 2019 and June 2020 Solar Eclipses: A Comparative Analysis of OKSM, FFNN, and DeepAR Models oleh R. Mukesh, Sarat C. Dass, Negash Lemma Gurmu, M. Vijay, S. Kiruthiga, S. Mythili, D. Venkata Ratnam, V. B. S. Srilatha Indira Dutt

    Diterbitkan 2024-01-01
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