Forward-Looking Electromagnetic Wave Imaging Using a Radial Scanning Multichannel Radar

Sumin Kim, Min Ho Ka

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


In this letter, a forward-looking electromagnetic wave imaging method using radial scanning multichannel radar is proposed. Compared to the current forward-looking imaging systems, the method requires less hardware complexity due to the reduced number of channels, which is especially advantageous for millimeter-wave and higher frequency systems aiming for a high-resolution. By digitally processing the radially scanned radar data, a 3-D radar image is obtained. An image formation algorithm that exploits the computational efficiency of the fast Fourier transform is proposed. The effects of the radar parameters are discussed by analyzing the impulse response function. Moreover, the rotational sampling requirement, which relates to the field of view, is derived. A numerical simulation was performed to demonstrate the 3-D imaging capabilities of the proposed method. The results show that the proposed method enables radar imaging using a substantially fewer number of channels.

Original languageEnglish
JournalIEEE Geoscience and Remote Sensing Letters
Publication statusPublished - 2022

Bibliographical note

Funding Information:
This work was supported in part by the grant-in-aid of HANWHA SYSTEMS and in part by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Korea Government (MSIT) under Grant 2021R1A2C2006025.

Publisher Copyright:
© 2004-2012 IEEE.

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology
  • Electrical and Electronic Engineering


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