| Name: POORVA SINGH |
| Affiliation: INDIAN INSTITUTE OF TECHNOLOGY, KANPUR |
| Conference ID: ASI2026_298 |
| Title: GONIOPOLARIMETRIC SIMULATIONS FOR SPACE WEATHER RADIO (SWARA) POLARIMETER |
| Abstract Type: Poster |
| Abstract Category: Facilities, Technologies and Data science |
| Author(s) and Co-Author(s) with Affiliation: Poorva Singh(Indian Institute of Technology, Kanpur - 208016, India), Mugundhan V.(Indian Institute of Technology, Kanpur - 208016, India), Anshu Kumari(Physical Research Laboratory, Ahmedabad - 380009, India) |
| Abstract: The Space Weather RAdio (SWARA) Polarimeter is a new space payload that aims to perform remote sensing and localisation of radio signatures from geoeffective Coronal Mass Ejections (CMEs) and flares, which can provide early warnings of potential space weather events. The SWARA Polarimeter is being developed at IIT Kanpur in collaboration with the Physical Research Laboratory (PRL). The payload, which is planned to operate from 300 kHz to 30 MHz, will utilise deployable tri-axial antennas and in-situ calibration to improve the accuracy of the detected electric fields, and effectively use them for localisation, using Goniopolarimetry. Goniopolarimetry is a well-established technique for determining the Direction of Arrival (DoA) and polarisation properties of electromagnetic radio waves. Its principal advantage lies in the ability to extract three-dimensional propagation information without the need for large or mechanically steered antenna arrays. By combining phase differences and polarisation measurements, goniopolarimetry enables accurate localisation of radio sources under stringent constraints on mass, power, and deployment. This study aims to simulate goniopolarimetry for different antenna scenarios, which are then used to derive receiver requirements. We plan to derive a generic mathematical framework that will be applicable for different antenna geometries and compare various reconstruction techniques to determine the threshold SNR for localisation accuracies of around ~1 deg. We will also use this to motivate the antenna sizes and the need for in-situ calibration. |
