NTA-NET (UGC-NET) Geography (80) Cartography-Basics of Remote Sensing Study Material (Page 8 of 26)
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Resolution
The ability of the remote-sensing system (includes lens antennae, display, exposure, processing etc.) to capture the infinite natural detail is called resolution. All modern sensors record the infinite detail of incoming electromagnetic radiation through an array of sensors, in discrete intervals of time. This inherently reduces the amount of recorded detail and defines the “resolution” of the system. Higher the resolution more the captured detai…
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Multispectral Scanning: Across-Track Scanners
Scanning systems have narrow field of view (i.e.. IFOV) that sweeps over the terrain to build up and produce two-dimensional image of the surface. In contrast to scanning system, non-scanning systems take photographs one after another.
Scanning systems are used …
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