Identify the threaten on UAV navigation and propose a technique to relief this threaten
 

Ionosphere parameters monitoring in the polar regions to develop a regional model for fast GNSS precise point positioning (PPP), sponsored by WUT, Poland
 

Simulation study of the mitigation for the plasma bubble effects on GBAS or SBAS using a VHF radar and scintillation over the Southeast
 

Large-scale International VHF Radar station Development for Understanding of Plasma bubble effects on Global Navigation Satellite System and satellite-based Communication system in Low-latitude region (2021), Sponsored by KMITL, Thailand
 

Project for Studying the Impacts of Atmospheric Changes and Plasma Bubbles on RTK positioning of 5G Technology and Unmanned Automated Vehicle (2022), Sponsored by KMITL, Thailand
 

Development of Ground-based Centimeter-level Maritime Precise PNT Technologie (2021), Sponsored by Sejong University, Seoul, South Korea
 

Ansari K, Panda SK, Kavutarapu V, Jamjareegulgarn P (2023) Towards mitigating the effect of plasma bubbles on GPS positioning accuracy through wavelet transformation over southeast Asian region, Advances in Space Research,
https://doi.org/10.1016/j.asr.2023.04.041

Ansari K (2023) Far-field dislocation modeling of Tohoku-Oki Japan earthquake co-seismic displacements and effect of ellipsoidal curvature of the earth, Geo-Marine Letters, 43 (7), 1–9
https://doi.org/10.1007/s00367-023-00748-z

Ansari K (2023) Investigation of the standalone and combined performance of IRNSS and QZSS constellations over Asia–Pacific region, Wireless Personal Communications, 1-15
https://doi.org/10.1007/s11277-023-10408-1

Ansari K (2023) Review on role of multi-constellation global navigation satellite system-reflectometry (GNSS-R) for real-time sea-level measurements, Structural Geology and Tectonics Field Guidebook, Springer Geology, Springer, Volume 2, 333–358
https://doi.org/10.1007/978-3-031-19576-1_13

Ansari K, de Oliveira-Junior JF and Jamjareegulgarn P (2022) Spatial changes of ocean circulation along the coast of Gulf of Thailand using tide gauge measurements, IEEE Access, 10, 130795–130805
https://doi.org/10.1109/ACCESS.2022.3229212

Ansari K, Seok HW and Jamjareegulgarn P (2022) Quasi zenith satellite system-reflectometry for sea-level measurement and implication of machine learning methodology, , Scientific Reports; 12, 21445
https://doi.org/10.1038/s41598-022-25994-6

Simanjuntak AVH and Ansari K (2022) Seismicity clustering of sequence phenomena in the active tectonic system of backthrust Lombok preceding the sequence 2018 earthquakes, Arabian Journal of Geosciences
https://doi:10.007/s12517-022-10973-y

Ansari K and Jamjareegulgarn P (2022) Effect of weighted PDOP on performance of linear Kalman filter for RTK drone data, IEEE Geoscience and Remote Sensing Letters, 9, 1–4
https://doi.org/10.1109/LGRS.2022.3204323

Ansari K (2022) Modelling and spectral analysis of sea-level trend over Indian coastal area, Marine Geophysical Research; 43 (6), 1–9
https://doi.org/10.1007/s11001-022-09468-y

Ansari K, Bae TS, Singh KD and Aryal J (2022) Multivariate Singular Spectrum Analysis of Seismicity in the Space-Time-Depth-Magnitude Domain: Insight from eastern Nepal and the southern Tibetan Himalaya, Journal of Seismology; 26, 147–166
https://doi.org/10.1007/s10950-021-10057-6

Ansari K and Park KD (2022) Geodetic analysis inside the South Korean Peninsula and impact of the 2011 Tohoku-Oki (TO) earthquake, Acta Geologica Sinica-English Edition
https://doi.org/10.1111/1755-6724.14885

Ansari K and Bae TS (2021) Modelling and Mitigation of Real-time sea level measurement over the coastal area of Japan, Marine Geophysical Research,
https://doi.org/10.1007/s11001-021-09460-y

Ansari K and Sharma SK (2021) Ionospheric TEC variation based on GNSS data over Arabian Peninsula and validation with the Cubic Spline interpolated GIM model, Advances in Space Research, 68 (9), 3814–3820;
https://doi.org/10.1016/j.asr.2021.06.043

Ansari K and Bae TS (2021) Wavelet and power spectrum analysis of global navigation satellite system multipath error modelling and mitigation, International Journal of Satellite Communications and Networking; 39 (6), 626–644;
https://doi.org/10.1002/sat.1405

Ansari K (2021) Review of the geometric model parameters of the Main Himalayan Thrust, Structural Geology and Tectonics Field Guidebook, Springer Geology, Springer, Volume 1, 305–323,
https://doi.org/10.1007/978-3-030-60143-0_10