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,

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

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Elements Of Remote Sensing
Which one of the following residual biases involves the GPS accuracy?

Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
Receiver-dependent biases due to clock stability with line
Signal propagation biases due to the sphere and troposphere propagation
All listed here

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Elements Of Remote Sensing
Geodimeter is based on:

Propagation of infrared radiation
Propagation of modulated light waves
The visible light as carrier with frequency of the order of 5 × 1014 Hz
High frequency radio waves

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