Room Reconstruction Based on Bi-Static mmWave RADAR Using the Antenna Pattern Information

Joint communication and sensing (JCAS) is one of the key topics of the upcoming 6G mobile communication standard. We propose a novel three-step method to extract the position of reflectors from channel impulse responses (CIRs) obtained by multiple bi-static RADAR measurements. The method consists of...

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Bibliographic Details
Published inIEEE access Vol. 12; pp. 109759 - 109774
Main Authors Wimmer, Lara, Petri, Markus, Grass, Eckhard
Format Journal Article
LanguageEnglish
Published IEEE 2024
Subjects
Antenna arrays
Azimuth
bi-static RADAR
joint communication and sensing (JCAS)
Radar
Radar antennas
Receiving antennas
Reflection
room reconstruction
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Summary:Joint communication and sensing (JCAS) is one of the key topics of the upcoming 6G mobile communication standard. We propose a novel three-step method to extract the position of reflectors from channel impulse responses (CIRs) obtained by multiple bi-static RADAR measurements. The method consists of the extraction of angle-of-departure (AoD) and angle-of-arrival (AoA), the computation of potential reflecting points and the classification of the propagation paths. For the extraction of AoD and AoA, we propose a novel algorithm with low computational effort. It has a better resolution than the step size of the underlying beam search process by utilizing the antenna beam pattern together with the evaluation of the CIR. The algorithm is compared to a straightforward approach in a raytracing simulation. The evaluation shows that the proposed novel algorithm outperforms the state-of-the-art approach. Furthermore, we discuss the limitations of the proposed room reconstruction method and the potential impacts of physical effects not covered in the simulation.
ISSN:2169-3536
2169-3536
DOI:10.1109/ACCESS.2024.3440635