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RossSpatial resolution refers to the level of detail in an image or data based on the size of each pixel or grid cell, while temporal resolution refers to the frequency at which new data is collected or updated in time. In other words, spatial resolution relates to the clarity of the image, while temporal resolution relates to how often that image is updated or refreshed.
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What is the difference between spatial resolution and spectral resolution?
Spatial resolution refers to the ability of a sensor to distinguish between objects in an image based on their size or distance from one another, while spectral resolution refers to the ability of a sensor to distinguish between different wavelengths or colors within the electromagnetic spectrum. In other words, spatial resolution relates to the clarity or level of detail in an image, while spectral resolution relates to the ability to differentiate between different spectral bands.
What is the significance of the distance between the two dishes in a radio interferometer with two dishes?
The distance between the two dishes in a radio interferometer is significant because it determines the resolution and sensitivity of the instrument. A larger distance between the dishes allows for higher resolution and the ability to detect fainter signals from celestial objects. This is important in radio astronomy for studying the fine details of distant objects in space.
Is sun coherent source?
Coherence is a measure of how well a signal, such as a optical wavefront, correlates with itself. For example, if you measure a peak at one point in space and time, what is the chance that you will measure a peak at another space and time? This hints that there are actually two forms of coherence, one related to time and the other to space.Temporal coherence looks at how well radiation measured at one single point correlates over time. In other words, if you measure a peak at one moment in time, how well can you predict that you'll measure a peak at another moment in time? Temporal coherence generally requires a small spread in wavelengths and a source which emits light in-phase. Lasers typically have high temporal coherence, while sunlight, which has a broad emission spectrum, has a low temporal coherence.But that's not the end of the answer.The other type of coherence is spatial coherence, and relates to how well two points on an emitter are correlated. One classic way of demonstrating spatial interference is the double-slit experiment: put two small slits in a sheet, and check to see that the light from the slits interferes constructively. Spatial coherence generally requires a small degree of angular spread. Again, most lasers have high spatial coherence. Sunlight also has high spatial coherence: because the sun is so far away, the rays of light are almost parallel.The coherence of sunlight has been studied since 1869 (Agarwal et al, "Coherence properties of sunlight", Optics Letters 29, p. 459, 2004) -- but even with more than a century of coherence, the subtle difference between spatial and temporal coherence can be tricky.
How do you say spaceship in french?
In French, spaceship is "vaisseau spatial."
What spatial bodies found between fourth and fifth planet?
The spatial bodies found between the fourth planet (Mars) and the fifth planet (Jupiter) in our solar system are the asteroid belt, a region filled with millions of rocky objects that vary in size from small pebbles to large protoplanets.
