11-06-2012, 12:32 PM
Seminar on Active Microwave Radar
Microwave Radar.ppt (Size: 3.65 MB / Downloads: 5)
What can we measure?
Satellite height
Significant wave height
Wind Speed
Aliasing
The altimeter measures sea level once every repeat period (except at cross-over points)
If we have a high frequency signal which we measure at a low frequency we get aliasing
Because of the way the altimeter lays down its tracks these aliased signals appear to move