Polarization Effect on Feature Extraction and Object Classification by Deep Learning

Sabzevari, Fatemeh Modares; Ardakani, Mansoor Dashti; Nosrati, Mehdi; Rambabu, Karumudi

doi:10.1109/ap-s/usnc-ursi47032.2022.9886304

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) 2022

DOI: 10.1109/ap-s/usnc-ursi47032.2022.9886304

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Polarization Effect on Feature Extraction and Object Classification by Deep Learning

Fatemeh Modares Sabzevari

Mansoor Dashti Ardakani

Mehdi Nosrati

et al.

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2024

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A Modified Kirchhoff Migration for Microwave Imaging in Superluminal Propagation Region

Sabzevari,

Winter,

Rambabu

2024

Trans. Rad. Sys.

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Microwave imaging has been developed recently and is used in many applications. Kirchhoff's migration technique is one of the most popular methods to recover the geometric info of any inaccessible target from raw data. The conventional Kirchhoff's migration assumes a uniform propagation velocity in the far-field region of the transceiver, i.e., the antenna. In the near-field region of the antenna, the pulse propagation happens at a significantly greater speed compared to the farfield region. The propagation speed of the pulse depends on the antenna dimensions and varies as a function of the distance and angle of the antenna in a non-linear manner. This non-linearity causes non-focused images. In this work, a modified Kirchhoff's migration method is proposed to take into account the nonuniformity of the propagation speed. Then, the proposed method is verified through several simulations and experiments and it is shown that the modified Kirchhoff's migration results in focused images in the near-field region.

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A Modified Kirchhoff Migration for Microwave Imaging in Superluminal Propagation Region

Sabzevari,

Winter,

Rambabu

2024

Trans. Rad. Sys.

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Polarization Effect on Feature Extraction and Object Classification by Deep Learning

Cited by 1 publication

References 4 publications

A Modified Kirchhoff Migration for Microwave Imaging in Superluminal Propagation Region

A Modified Kirchhoff Migration for Microwave Imaging in Superluminal Propagation Region

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