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Publications:

  1. Technical Aspects of 53 MHz VHF ST Radar Pilot Array at University of Calcutta for Lower Atmospheric Probing, P. Nandakumar, J.Y. Siddiqui and A. Paul, IEEE Ant. Wireless Propgn. Letts., doi: 10.1109/LAWP.2023.3311924, 2023.
  2. Study on temperature sheets using higher order spectral analysis, R. Enugonda, V.K. Anandan, A. Paul and B. Ghosh, Adv. Space Res., https://doi.org/10.1016/j.asr.2024.03.067, 2024.
  3. Features of Atmospheric Dynamics During Tropical Cyclone AMPHAN Observed Using ST Radar and Doppler Weather Radar, P. Nandakumar, K. Chakravarthy, D. Jana, B.A.M. Kannan, J.Y. Siddiqui and A. Paul, IEEE Trans. Geosc. Rem. Sens., 62, 10.1109/TGRS.2024.3387332, 2024.
  4. Validation of wind measurements from a 53MHz ST radar located at University of Calcutta with collocated radiosonde launches, P. Nandakumar, D. Jana, S.V. Sunilkumar, Satheesh Chandran P. R., Vishnu R., T. Das, G. Singh, S. Majumder, J.Y. Siddiqui, A. Paul, Radio Sci., 2022, doi: 10.1029/2020RS007246
  5. First results on E region irregularities from a 53 MHz radar experiment from Haringhata, India Ashik Paul, P. Chaitanya, A.K. Patra, P. Nandakumar, Tanmay Das, Radio Sci., 2021 , doi: 10.1029/2021RS007289
  6. Summer Night-Time E-Layer Echoes observed using University of Calcutta ST Radar, T. Das, P. Nandakumar, G. Singh, D. Jana, J. Y. Siddiqui , S. Majumder and A. Paul , Notes in Networks and Syst.,Vol. 147,Chapter26, Springer, 2021 http://doi.org/10.1007/978-981-15-8366-7_26
  7. Lower Atmospheric Wind Profile Studies and Validation Using VHF Doppler Radar of University of  Calcutta,T. Das, P. Nandakumar, G. Singh, D. Jana, A.Mitra, A.Ghosh, S. Datta, J. Y. Siddiqui , S. Majumder and A. Paul, Lect. Notes in Networks and Syst., Vol. 147,Chapter 25, Springer, 2021,  https://doi.org/10.1007/978-981-15-8366-7_25
    1. Lower atmospheric characteristics and Ionospheric backscatter observed using Calcutta

    University ST Radar (CU-STR), T. Das, P. NandaKumar, G. Singh, D. Jana and A. Paul, URSI Asia-Pacific Radio Science Conference (AP-RASC), 2019, pp. 1-1, IEEE Xplore, 2019, doi: 10.23919/URSIAP-RASC.2019.8738486.

Conference papers:

  1. Passive mode operation of CU-ST Radar for sun tracking, Arjun Ghosh, Abhirup Datta, Narendranath Patra, Ashik Paul and P. Nandakumar, 41st meeting of the Astronomical Society of India, IIT Indore, March 1-5, 2023
  2. VHF Active Phased Pilot Array Radar for Atmospheric Remote Sensing Applications at University of Calcutta, P. Nandakumar, J.Y. Siddiqui, A. Paul, Wireless Antenna Microwave Symposium (WAMS 2023), Pandit Deendayal Energy University (PDEU), Gandhinagar, Gujarat, June 07-10, 2023
  3. Active Phased Array Radar of 475-Element Yagi Antenna for Stratosphere-Troposphere Observations at University of Calcutta, P. Nandakumar, J. Y. Siddiqui and A. Paul, 2023 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (USNC-URSI), Portland, OR, USA, July 23-28, 2023, pp. 351-352, doi: 10.1109/USNC-URSI52151.2023.10237764.
  4. Design and Testing of 2-kW TRM for a VHF Active Phased Array ST Radar at University of Calcutta, P. Nandakumar, J. Y. Siddiqui and A. Paul, 8th International Conference on Computers and Devices for Communication (CODEC 2023), Kolkata, December 14-16, 2023
  5.  Observations from Lower Atmosphere, Mesosphere and Ionosphere using 53MHz VHF Radar at University of Calcutta, P. Nandakumar, J. Y. Siddiqui and A. Paul, 6th Conference on India Radar Meteorology (iRAD 2024), IIT-Indore), January 10 – 12, 2024 
  6. Solar Observation at 53 MHz using CU-ST Radar with Signal processing Techniques in Passive Mode Operation, Arjun Ghosh, Sanjit Mukherjee, Abhirup Datta, Narendranath Patra, Ashik Paul, P Nandakumar, 6th Conference on India Radar Meteorology (iRAD 2024), IIT-Indore), January 10 – 12, 2024. 
  7.  A comprehensive study of stratosphere-troposphere interactions using a network of ST and MST Radars in the Indian summer monsoon region, Siddarth Shankar Das, M. V. Ratnam, Manish Naja, S. Abhilash, Ashik Paul, M. Durga Rao, Samaresh Bhattacharjee, V. Rakesh, P. Nandakumar, K. N. Uma, Nabarun Poddar, Veenus Venugopal, 6th Conference on India Radar Meteorology (iRAD 2024), IIT-Indore), January 10 – 12, 2024.
  8. Atmospheric Gravity Wave Signatures in the Lower Atmosphere over a Tropical Location observed using a VHF active-phased array ST Radar, Souvik Majumder, Arjun Ghosh, P Nandakumar, Ashik Paul, 6th Conference on India Radar Meteorology (iRAD 2024), IIT-Indore), January 10 – 12, 2024.
  9.  Potential applications of the new ST Radar facility at Kolkata, A. Paul, Nat. Space Sci. Symp., Univ. of Goa, February 26 – March 1, 2024
  10. Atmospheric dynamics as observed using 53MHz ST Radar at Calcutta (CU-STR), Tanmay Das, P. Nandakumar, Gopal Singh and Ashik Paul, 15th International Symposium on Equatorial Aeronomy, Physical Research Laboratory, Ahmedabad, India, October 22-26, 2018.
  11. Initial observations on Atmospheric Dynamics and Ionospheric irregularities from the 53MHz ST Radar at Calcutta, Tanmay Das, P. NandaKumar,  Gopal Singh, Debyendu Jana and Ashik Paul, IEEE International Symposium on Antennas and Propagation (APSYM), Cochin University of Science and Technology (CUSAT), Kochi, December 3-5, 2018.
  12. Initial results observed using 53MHz ST Radar at Calcutta during pre-monsoon, monsoon and post-monsoon seasons, Tanmay Das, Debyendu Jana and Ashik Paul, 3rd Conference on India Radar Meteorology (iRad 2019), Indian Institute of Tropical Meteorology (IITM), Pune, January 9-12, 2019.
  13. Lower atmospheric characteristics and Ionospheric backscatter observed using Calcutta University ST Radar (CU-STR), Tanmay Das, P. NandaKumar, Gopal Singh, Debyendu Jana and Ashik Paul, URSI Asia Pacific Radio Science Conference (URSI APRASC 2019), New Delhi, India, March 9-15, 2019.
  14. Summer Night-Time E-Layer Echoes observed using University of Calcutta ST Radar, T. Das, A. Paul, P. Nandakumar, G. Singh, D. Jana, J. Y. Siddiqui, and S. Majumder, CODEC 2019
  15. Lower Atmospheric Wind Profile Studies and Validation Using VHF Doppler Radar of University of Calcutta, T. Das, P. Nandakumar, G. Singh, D. Jana, A.Mitra, A.Ghosh, S. Datta, J. Y. Siddiqui , S. Majumder and A. Paul, CODEC 2019
  16. Application of VHF Doppler Radar of University of Calcutta for Characterizing Lower Atmospheric Dynamics, Debyendu Jana, Tanmay Das and Ashik Paul, 2020;  URSI Regional Conference on Radio Science (URSI-RCRS 2020), IIT (BHU),  Varanasi, India, February 12-14, 2020
  17. First Ionospheric signatures of Field Aligned Irregularities observed using University of Calcutta ST Radar, Ashik Paul, Tanmay Das and P. Nandakumar, URSI RCRS 2020, 12 – 14 February, 2020, IIT (BHU), Varanasi, India
  18. Use of 53MHz VHF Radar of Calcutta University to Quantify the Lower Atmospheric Wind Characteristics during Summer Monsoon of 2021, Debyendu Jana, P. Nandakumar, Tanmay das, Gopal Singh and Ashik Paul; 21st National Space Science Symposium (NSSS 2022), IISER Kolkata, India , January 31 to February 4, 2022
  19. Observations of Summer Night-Time FAI Using University of Calcutta ST Radar, Tanmay Das, Arkadev Kundu, Ashik Paul, 21st NSSS 2022,31 Jan-4 Feb, 2022, IISER Kolkata
  20. Three Components of Wind and Lower Atmospheric Turbulence Measurements Using VHF Doppler Radar of University of Calcutta to Characterize Lower Atmospheric Dynamics, Debyendu Jana, P. Nandakumar, Tanmay Das, Gopal Singh and Ashik Paul, Solar – Terrestrial Physics Symosium (STP-15), Indian Institute of Geomagnetism, India, February 21-25, 2022.
  21. Atmospheric circulation during Indian Summer Monsoon 2021: A study using 53 MHz VHF radar at Haringhata, Debyendu Jana, P. Nandakumar and Ashik Paul, Annual Monsoon E-Workshop (AMW 2021), Indian Meterological Society, Pune, India, February 21-23, 2022
  22. Design and Characterization of Phased Array Antennas for ST Radar Operating at 53MHz, J.Y. Siddiqui, P. Nandakumar, K.P. Ray, Ashik Paul, IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, July 10-15, 2022, Denver, USA.
  23. Studies of low-latitude Field-Aligned Ionospheric Irregularities observed using University of Calcutta VHF Radar, Ashik Paul, Tanmay Das and P. Nandakumar, 21st International Beacon Satellite Symposium (BSS-22), August 1-5, 2022, Boston College, USA.
  24. Studies of low-latitude Ionospheric Irregularities observed using University of Calcutta VHF Radar and other systems, Ashik Paul, International Colloquium on Equatorial and Low-Latitude Ionosphere, September 19-23, 2022, Centre for Atmospheric Research, National Space Research and Development Agency, Anyigba, Nigeria
  25. Beam Formation of 53 MHz Active Phased Pilot Array ST Radar at University of Calcutta using Radar Controller Software, P. Nandakumar, J.Y. Siddiqui, A. Paul, URSI-RCRS 2022, December 1-4, 2022, IIT Indore
  26. Atmospheric Boundary Layer Observations over Haringhata using VHF Active Phased Pilot Array Radar of Calcutta University: Preliminary Results, D. Jana and A. Paul, URSI-RCRS 2022, December 1-4, 2022, IIT Indore.