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Elements Of Remote Sensing

Elements Of Remote Sensing
Which one of the following helps to identify the objects on the earth surface?

Signature
None of these
Radiometric error
Atmospheric window

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Elements Of Remote Sensing
For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length loch is:

230 km
250 km
500 km
130 km

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Elements Of Remote Sensing
Which one of the following errors is produced by platform characteristics of the sensor?

Altitude variation
All of these
Orbit drift
Altitude

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Elements Of Remote Sensing
The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface are called:

Passive sensors
Sensors
Active sensors
None of these

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Elements Of Remote Sensing
Which one of the following geometric errors of satellite sensors is random?

Altitude variation
Scan skew
Panoramic distortion
Earth rotation

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Elements Of Remote Sensing
The basic requirement of any sensor system is:

Radiometric resolution
All of these
Spectral resolution
Spatial resolution

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