Exact(12)
Typically, this occurs when there is a bright reflection alongside the shadow, due to a reflecting object such as a foam cell or calcification, or from extra reflection echoes.
The strength of the return signals will vary depending on the reflectivity of the surface of the reflecting object and on its distance.
Reflected light contains information about the reflecting object and the illumination, which is unpacked by the brain.
The interferences they produce are determined primarily by the delay of the reflection (related to the distance) and secondarily by the nature of the reflecting object (grass, sand, snow, etc).
The altimeter system, measuring the time it takes light pulses to travel to a reflecting object and back to the satellite, will calculate the precise elevations and positions of ice sheets, icebergs, clouds and land formations.
If the observation duration is short enough, the reflecting object remains within one range resolution cell.
Similar(48)
Hence, on the cathode-ray tube a faint ray of light rotates around the screen like a searchlight, following the rotation of the antenna, and paints in the positions of any reflecting objects as if they were on a map.
Moreover, the capture of depth for white or reflecting objects was not satisfactory.
Retroreflective article is different from other reflecting objects as it returns the incident ray back to the source.
The neuronal mechanisms that serve to distinguish between light emitting and light reflecting objects are largely unknown.
Scattering from nearby perfectly reflecting objects is computed through a Kirchhoff–Helmholtz integral equation applying the Kirchhoff approximation.
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