Elements Of Remote Sensing
Consider the following statements regarding the satellite imaging:
1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?

1, 2, 3
2, 3
1, 3
1, 2

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Elements Of Remote Sensing
The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,

Increases the contrast of the image but reduces the sharpness
Reduces the contrast of the image and also its sharpness
Reduces the contrast but increases the sharpness
Increases both the contrast and sharpness

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Elements Of Remote Sensing
Due to scan geometry of a satellite sensor:

The off-nadir resolution is degraded
All of these
The details towards the edge of the scan get compressed
The ground distance swept by the senor, IFOV is proportional to sec2θ, where θ is the angle of scan measured from the nadir

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