Whisk Broom Scanner
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Whisk Broom Scanner

A whisk broom or spotlight sensor, also known as an across-track scanner, is a technology for obtaining satellite images with optical cameras.[1] It is used for passive remote sensing from space. In a whisk broom sensor, a mirror scans across the satellite's path (ground track), reflecting light into a single detector which collects data one pixel at a time. The moving parts make this type of sensor expensive and more prone to wearing out. Whisk broom scanners have the effect of stopping the scan, and focusing the detector on one part of the swath width. Because the detector is only focused on a subsection of the full swath at any time, it typically has a higher resolution than a push broom design for the same size of scan swath.

All sensors aboard the Landsat series of satellites used the whisk broom design until Landsat 8.[1]

See also

References

  1. ^ a b Shippert, Peg. "Push Broom and Whisk Broom Sensors". Exelis VIS. Exelis Visual Information Solutions. Retrieved 2015.

External links


  This article uses material from the Wikipedia page available here. It is released under the Creative Commons Attribution-Share-Alike License 3.0.

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