Podcast
Questions and Answers
What is the primary factor that determines the type and degree of relief displacement in a radar image?
What is the primary factor that determines the type and degree of relief displacement in a radar image?
- Local slope of the ground (correct)
- Altitude of the radar sensor
- Distance from the radar sensor to the target
- Frequency of the radar beam
What occurs when the angle of the radar-facing slope is less than θi?
What occurs when the angle of the radar-facing slope is less than θi?
- Relief displacement is minimized
- Layover occurs
- Foreshortening occurs (correct)
- Radar shadow is created
What happens when the local incident angle is 90°?
What happens when the local incident angle is 90°?
- Foreshortening reaches a maximum (correct)
- Layover occurs
- Radar shadow is minimized
- Relief displacement is eliminated
What is the result when the angle of the radar-facing slope is greater than θi?
What is the result when the angle of the radar-facing slope is greater than θi?
What is created when the radar beam is blocked by a feature?
What is created when the radar beam is blocked by a feature?
What is the main reason for acquiring opposing look directions in areas with high relief?
What is the main reason for acquiring opposing look directions in areas with high relief?
What is the definition of local incident angle?
What is the definition of local incident angle?
What is the largest source of error in radiometric calibration?
What is the largest source of error in radiometric calibration?
Why do radar and optical systems exhibit different topographic displacement?
Why do radar and optical systems exhibit different topographic displacement?
What is the effect of local incident angle on image brightness per pixel?
What is the effect of local incident angle on image brightness per pixel?
What is the primary importance of radar shadow in radar imagery?
What is the primary importance of radar shadow in radar imagery?
What is the result of foreshortening in radar images?
What is the result of foreshortening in radar images?
At what incident angle is foreshortening at a maximum?
At what incident angle is foreshortening at a maximum?
What is the trade-off in selecting incident angle in SAR image analysis?
What is the trade-off in selecting incident angle in SAR image analysis?
What is the result of a grazing angle in radar imagery?
What is the result of a grazing angle in radar imagery?
What is the effect of a small local incident angle on radar returns?
What is the effect of a small local incident angle on radar returns?
What is the term for the minimum distance that describes how well the radar can discriminate closely spaced reflectors?
What is the term for the minimum distance that describes how well the radar can discriminate closely spaced reflectors?
What is the effect of a larger local incident angle on radar returns?
What is the effect of a larger local incident angle on radar returns?
What is the name of the discipline that uses slope-induced radiometric effects in SAR image analysis?
What is the name of the discipline that uses slope-induced radiometric effects in SAR image analysis?
What is the name of the phenomenon where a radar signal is displaced horizontally due to topographic displacement?
What is the name of the phenomenon where a radar signal is displaced horizontally due to topographic displacement?
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