Effects caused by moving objects
The visualization of moving objects in SAR images depends on the direction of the movement. Objects moving in range direction will be shifted in azimuth direction, because the azimuth position of an object in a SAR image is determined by the Doppler Effect. Moving objects disturb the Doppler. Therefore the object position in azimuth is erroneous. Objects movements in azimuth direction lead to smearing in the SAR image. If an object is moving in azimuth and range direction, the effects are combined.
