Ultra-wideband radio tomographic imaging with resolution near the diffraction limit

S. E. Shipilov, R. N. Satarov, V. P. Yakubov, A. V. Yurchenko, O. V. Minin, I. V. Minin

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The experimental ultra-wideband radio tomographic imagings inside and behind dielectric barriers with resolution near the diffraction limit are described. The problem is solved by the method of radio wave tomosynthesis using the theory of spatial spectra of the received signals. The ultra-wideband pulse sensing of the air—building structure medium, developed in Tomsk State University, are described. It has been shown that for the case of sensing with ultra-wideband pulses of 0.2 ns duration, the resolution is about 2 cm. The paper also shows the possibility of accelerating scanning of the investigated space through the use of the MIMO (timed or switched) antenna array technology. As in the timed mode the distance between the receiving and transmitting antennas varies from time step to time step, the algorithm of processing the data obtained from the array is to be modified. The modification itself is a nonlinear stretching of the received UWB signal in time. The signal transformation allows preparation of data for the above algorithm to receive three-dimensional images of the tested space. The paper presents the results of the processed experimental data which confirm the efficiency of the proposed method for MIMO arrays. The resulting image resolution is about 2 cm.

Original languageEnglish
Article number339
JournalOptical and Quantum Electronics
Volume49
Issue number10
DOIs
Publication statusPublished - 1 Oct 2017

Fingerprint

Ultra-wideband (UWB)
Diffraction
broadband
Imaging techniques
MIMO (control systems)
MIMO systems
diffraction
Radio waves
radio waves
image resolution
antenna arrays
Image resolution
pulses
Antenna arrays
Stretching
antennas
Antennas
Scanning
preparation
scanning

Keywords

  • MIMO arrays
  • Radiation focusing
  • Radio tomography
  • Ultra-wideband sounding behind barriers

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Ultra-wideband radio tomographic imaging with resolution near the diffraction limit. / Shipilov, S. E.; Satarov, R. N.; Yakubov, V. P.; Yurchenko, A. V.; Minin, O. V.; Minin, I. V.

In: Optical and Quantum Electronics, Vol. 49, No. 10, 339, 01.10.2017.

Research output: Contribution to journalArticle

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