Autors: Jȩdrzejewski K., Wójtowicz P., Najda R., Suwiński K., Piasecki M., Pozoga M., Rothkaehl H., Aleksieva, P. V., Petkov, P. J.
Title: Evaluation of Passive Radar Capabilities for LEO Target Detection Using Electromagnetic Modeling of LOFAR Antenna Array
Keywords: electromagnetic modeling, LEO satellites, LOFAR, passive radar

Abstract: The paper presents the results of electromagnetic modeling of the LOFAR (LOw-Frequency ARray) radio telescope antenna array, employed as a surveillance receiver in a passive radar system for detecting targets in Low-Earth Orbit (LEO). Electromagnetic simulations, conducted using Ansys software, were used to assess the radar's detection capabilities by estimating the expected Signal-to-Noise Ratio (SNR) values, considering the azimuth and elevation angles at which targets are visible to the surveillance receiver. The SNR predictions based on the modeled array performance were compared with results obtained from real-world passive radar measurements. Additionally, the radiation pattern of the illuminator of opportunity - a digital radio transmitter - was incorporated into the SNR analysis to enhance prediction accuracy.

References

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Issue

Proceedings of the IEEE Radar Conference, pp. 1390-1395, 2025, United States, https://doi.org/10.1109/RadarConf2559087.2025.11205033

Copyright The Institute of Electrical and Electronics Engineers

Вид: публикация в международен форум, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus