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Improved two-dimensional millimeter-wave imaging for concealed weapon detection through partial fourier sampling

Farsaei, A. A ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1007/s10762-015-0223-z
  3. Publisher: Springer New York LLC
  4. Abstract:
  5. Active millimeter-wave imaging based on synthetic aperture focusing offers certain unique and practical advantages in nondestructive testing applications. Traditionally, the imaging for this purpose is performed through a long procedure of raster scanning with a single antenna across a two-dimensional grid, leading to a slow, bulky, and expensive scanning platform. In this paper, an improved bistatic structure based on radial compressive sensing is proposed, where one fixed transmitter antenna and a linear array of receiving antennas are used. The main contributions of this paper are (a) reducing the scanning time, (b) improving the output quality, and (c) designing an inexpensive setup. These improvements are the result of the underlying proposed simpler scanning structure and faster reconstruction process
  6. Keywords:
  7. Antennas ; Holography ; Nondestructive examination ; Receiving antennas ; Scanning ; Scanning antennas ; Signal reconstruction ; Synthetic aperture radar ; Compressive sensing ; Concealed weapon detection ; Millimeter-wave imaging ; Partial-Fourier ; Reconstruction process ; Synthetic aperture focusing ; Transmitter antennas ; Two-dimensional grids ; Millimeter waves
  8. Source: Journal of Infrared, Millimeter, and Terahertz Waves ; Volume 37, Issue 3 , 2016 , Pages 267-280 ; 18666892 (ISSN)
  9. URL: https://link.springer.com/article/10.1007/s10762-015-0223-z