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from article Moving-target indication
Diagram of radar system with moving-target indication.
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from article Amplitude-modulation radio
An example of a low-frequency broadcast antenna. This three-tower array is connected to the Beidweiler long-wave transmitter (located in Beidweiler, Luxembourg), which broadcasts at a frequency of 234 kHz. Each tower is 290 m (951 ft) tall. (Photo…
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from article Frequency-modulation radio
Modulated waveforms.
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from article Frequency-modulation radio
FM subcarrier services.
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from article Frequency-modulation radio
IBOC digital radio signal (FM hybrid).
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from article Cellphone camera
The Samsung Galaxy S10’s three rear cameras. From left to right: 12-MP telephoto camera, f/2.4 aperture; 12-MP wide-angle camera, dual f/1.5 and f/2.4 aperture; and 16-MP ultrawide camera, f/2.2 aperture.
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from article Cellphone camera
Photograph taken with the iPhone XR’s single, rear 12-MP wide-angle camera with an f/1.8 aperture, 5X digital zoom, six-element lens system, autofocus with focus pixels, optical image stabilization, bokeh and depth control, and HDR.
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from article Cellphone camera
The Bayer filter, invented by Brice Bayer of Eastman Kodak, overlays the camera image sensor grid to permit the measurement of color by the individual photo sensors. The data are analyzed to provide a color photograph. (a) Top view of the Bayer…
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from article Computer-system evaluation
Taxonomy of performance models.
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from article Neandertals
Neandertal cranium excavated from Forbes' Quarry, Gibraltar. Note the pronounced brow ridges, large braincase, and receding forehead. (Photo courtesy of Clive Finlayson, Gibraltar Museum)
