Dracula's Castle

by BJHStudios

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Simple answer is no, at least not yet. I say this because if this was possible then equipment would exist in the test & measurement world. and instead we have equipment that can only use calibrated antennas to compute relative strength and frequency. You move a detector around and observe results. I think this is the kind of measurement system out ...


As there is currently no such camera known to me, it would be possible to build a quite effective one using an array of patch antennas to form a phased array. As such, a large flat antenna, say 1 by 1m, could be made from printed circuit board. However, a large amount of expensive HF components would be needed to integrate all individual antenna elements ...


Another 'sort of' answer: One possibility, more analogous to a traditional camera, is to use a stationary receiver and a strongly directional antenna. If the antenna is directed in the same way that an electron beam moves across a CRT screen, a render of signal strength can be created that can then be overlaid with a photo taken from the same point. While ...


I disagree with the answer with many upvotes. Physical lengths can be "swindled" in a number of ways and theoretically it would be possible to build a portable camera that snaps images of a very tiny portion of the electromagnetic spectrum. Plus, you are not considering that there are not only high-band signals, but also ultra-high-band signals that could be ...


Sort of. Not a "camera", but a computational imaging technique. We explore the feasibility of achieving computational imaging using Wi-Fi signals. To achieve this, we leverage multi-path propagation that results in wireless signals bouncing off of objects before arriving at the receiver. These reflections effectively light up the objects, which ...


In order to get an image, both the subject and the "camera" must be much larger than the wavelength of the light that you use for imaging. The wavelength of visible light is between approximately 400 and 800 nm, i.e. smaller than a ┬Ám. Radio frequencies go up to several GHz, which corresponds to wavelengths of many centimeters. For example, the 2.4 GHz ...

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