Undergrad How can tomographic image resolution be obtained using wifi sensing and imaging?

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Tomographic image resolution using WiFi sensing relies on the spacing of multiple receiver antennas relative to a single transmitter, with resolution determined by the antenna array's aperture in wavelengths. The formula for angular resolution is approximately 57° divided by the wavelength. To effectively capture lower spatial frequencies, the antenna array must consist of several elements spaced appropriately. Research indicates that operating at 5 GHz can yield better resolution than 2.4 GHz due to its shorter wavelength. Exploring online resources can provide additional insights into optimizing WiFi sensing for tomographic imaging.
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tomographic image resolutions from wifi sensing
hello i would like to ask how to obtain tomographic image resolutions from wifi sensing and imaging using signals processing. thanks very much.
 
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If you have one wifi transmitter and multiple receiver antennas, then the image resolution will be a function of the spacing of the furthest apart antennas. Where λ is the aperture of the antenna array in wavelengths. The angular resolution in degrees will be approximately;
Resolution = 57° / λ;
That can be applied in the horizontal and vertical dimensions.
The antenna array will need several elements, variously spaced between the end elements, to resolve the lower spatial frequencies in the image.
 
2.4 GHz is 12 cm. Seeing below that poses a fundamental challenge. 5 GHz is twice as good.
 

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