The Application of Array Antenna for Beamforming Feature Addition to the Phase Interferometer Direction Finder

Document Type : Original Article

Authors

1 PhD Student, Faculty of Electrical Engineering, Sharif University of Technology, Tehran, Iran

2 Associate Professor, Faculty of Electrical Engineering, Sharif University of Technology, Tehran, Iran

3 Master student, Sharif University of Technology, Tehran, Iran

Abstract

In this paper a modified Gaussian pulse stimulus is employed to improve the accuracy of tumor
detection inside breast phantom for 2D reconstructed image results in cylindrical setup of the
microwave imaging system. This pulse shaping puts more energy at higher frequencies in
contrast with conventional Gaussian pulse shaping in the impulse radar. Hence a wider
bandwidth is available to achieve higher accuracy for precise spatial localization. In the present
article a simulated cylindrical setup of the microwave imaging system with a modified
stimulated pulse is generated. The main purpose of this paper is employing a new stimulating
pulse to detect a tumor from a biological phantom for 2D visualization of time-domain results.
In order to achieve the goal, the advantages of generating a novel confocal image-reconstructing
algorithm based on back-projection method is employed. The advantage conferred by “high
resolution imaging” is that more energy is used at reflected signal than with conventional
confocal imaging, and subsequently a relatively lower spatial resolution in identifying the
reflected signal is achieved. Simulated results are presented to validate the effectiveness of the
proposed method for precisely calculating the time-dependent location of targets.

Keywords

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References

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Radar
Volume 9, Issue 1 - Serial Number 25
September 2021
Pages 119-129

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History

  • Receive Date: 03 July 2021
  • Revise Date: 24 August 2021
  • Accept Date: 13 December 2021
  • Publish Date: 23 August 2021

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