Direction of Arrival Estimation of Meteors Echoes using Array Radio Antennas

Authors

  • Imad K. Akeab Department of Astronomy and Space, College of Science, University of Baghdad, Baghdad, Iraq
  • Yasser Chasib Bekheet Department of Astronomy and Space, College of Science, University of Baghdad, Baghdad, Iraq
  • M. N. Al Najm Department of Astronomy and Space, College of Science, University of Baghdad, Baghdad, Iraq

DOI:

https://doi.org/10.24996/ijs.2024.65.10(SI).18

Keywords:

Meteors, Improved Music algorithm, Doppler shift, L-shaped array antenna, GNU Radio

Abstract

Array antennas have an interesting role in the radio astronomy field. The array antennas allow astronomers to obtain high-resolution signals with high sensitivity to weak signals. This paper estimates the meteors' positions entering the Earth's atmosphere and develops a simulation for array antenna radar to analyze the meteor's echoes. The GNU radio software was used to process the echoes, which is a free open-source software development toolkit that provides signal processing blocks to implement in radio projects. Then, the simulation determines the azimuth and elevation of the meteors. An improved Multiple Signal Classification (MUSIC) algorithm has been suggested to analyze these echoes. The detected power of each meteor echo has a Doppler frequency shift due to the high speed of the meteors, which impacts the accuracy of the Direction of Arrival (DOA) estimation. The Doppler shift was considered in this simulation, and the results showed that the suggested method has low complexity and high resolution and can estimate the meteors' position with the minimum error.

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Published

2024-11-15

How to Cite

Direction of Arrival Estimation of Meteors Echoes using Array Radio Antennas. (2024). Iraqi Journal of Science, 65(10(SI), 6114-6123. https://doi.org/10.24996/ijs.2024.65.10(SI).18

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