Patent
Holographic microwave imaging system and imaging method thereof
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TLDR
In this article, a holographic microwave imaging system consisting of a signal generating unit, a signal transmitting unit, an image conversion unit, and an image display unit is presented. But the system is not suitable for the use of a single-frequency-domain image.Abstract:
The invention relates to a holographic microwave imaging system and an imaging method thereof. The imaging system comprises a signal generating unit, a signal transmitting unit, a signal receiving unit, a signal control unit, a signal and image conversion unit and an image display unit, wherein the signal generating unit is used for transmitting a microwave signal to a to-be-detected object by virtue of the signal transmitting unit, so that a scattered electric field is formed around the to-be-detected object; the signal receiving unit is used for measuring the scattered electric field as well as information change in the to-be-detected object and in the surrounding electric field, and the signal receiving unit is used for transmitting measurement results to the signal control unit; the signal control unit is used for acquiring scattered electric field visibility distribution of the to-be-detected object and for transmitting the scattered electric field visibility distribution to the signal and image conversion unit; and the signal and image conversion unit is used for constructing a four-dimensional image of the to-be-detected object and for transmitting the four-dimensional image to the image display unit which is in charge of displaying the image. The imaging method comprises steps of transmitting the single-frequency-domain microwave signal to the to-be-detected object; receiving the scattered field; acquiring an amplitude and phase delay information; and achieving the reconstruction of the four-dimensional image.read more
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References
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TL;DR: In this article, the authors proposed an arrangement of receivers and transmitters used in wideband holographic imaging using a reduced number of physical antenna elements compared to established techniques and systems.
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TL;DR: In this paper, the authors proposed a method to image an object of interest using one or more probes, while activating a probe to interact with the scattered field and sampling the resulting scattered field using one of the receiving antennas, which is then used to reconstruct an image of the object.
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