摘要: The space sensor view of the earth provided users with an exact image on a grand scale and capability for routine observation global basis. Different systems have been designed from space. Radiometer has most useful in remote sensing applications. Space radiometers certain characteristics, such as high sensitivity, fast response, low design complexity cost. A radiometer measures radiance electromagnetic radiation within given spectral region. simplest system consists telescope, optical interference filter, detectors at focal plane locations. In multispectral radiometer, each filter its own same or different planes by use beamsplitter device. An alternative technique utilizes single filters that are inserted sequentially into system. Several types measurements earth-atmosphere important UV, visible, near infrared (IR); these measurements, polarization time-dependent viewing, solar angle measurements.
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