Title: Impact of atmospheric propagation impairments on submillimetre airborne radar performance

Authors: Bedilu Ababu Teka; Demissie Jobir Gelmecha; Ram Sewak Singh; Rajeev Kumar Shakya; Bijay Kumar Paikaray; Satyasis Mishra

Addresses: Department of Electronics and Communication Engineering, Adama Science and Technology University, Adama, Ethiopia ' Department of Electronics and Communication Engineering, Adama Science and Technology University, Adama, Ethiopia ' Department of Electronics and Communication Engineering, Adama Science and Technology University, Adama, Ethiopia ' Department of Electronics and Communication Engineering, Adama Science and Technology University, Adama, Ethiopia ' Centre for Data Science, Department of Computer Science and Engineering, Siksha 'O' Anusandhan (Deemed to be) University, Odisha, India ' Department of Electronics and Communication Engineering, Centurion University of Technology and Management, Odisha, India

Abstract: This research presents the performance of submillimetre airborne radar systems in the presence of various atmospheric propagation impairments. The study aims to assess the effects of environmental factors such as rain, fog, clouds, atmospheric turbulence, and atmospheric attenuation on radar performance using computational methods such as Friis-transmission, ecological factors and radiation model. The simulated results have shown that the free space path loss significantly increases with distance and frequency and highlights the importance of accounting for phase differences in radar performance. The rise in the Earth's potential leads to greater angles of incidence and refraction, lowers reflection coefficients, and enhances the output signal-to-noise ratio. This underscores the critical need to optimise transmit power. This research has been provided to extract valuable insights into the performance dynamics of submillimetre airborne radar systems amidst atmospheric propagation impairments, providing essential considerations for radar system design and operation in critical environments.

Keywords: atmospheric propagation impairments; airborne radar systems; atmospheric attenuation; environmental factors; atmospheric turbulence.

DOI: 10.1504/IJSPM.2024.146030

International Journal of Simulation and Process Modelling, 2024 Vol.21 No.4, pp.305 - 320

Received: 27 Nov 2024
Accepted: 25 Feb 2025
Published online: 01 May 2025 *

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