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Another alternative is to sweep the radar so you get multiple revisits from different times and angles. Stacking the revisits at a location will suppress the m
by vonmoltke 11y ago
Another alternative is to sweep the radar so you get multiple revisits from different times and angles. Stacking the revisits at a location will suppress the multipath since, in theory, the multipath components depend more strongly on grazing and aspect angle than the "real" components.
- lindzey 11y agoAbsolutely! I only included our lowest-level data products in this post. We don't sweep the radar side-to-side, but since it's on a moving platform, we see the same thing from multiple angles. In the data I showed, there has been some very limited stacking applied, mostly just to improve the signal-to-noise ratio. The next level of processing would be focusing/migration (depending on whether you're in the radar or seismic world) - it reasons about possible incident angle and collapses the hyperbolas to a single point. Unfortunately, this only improves the resolution along the flight track; features parallel to the flight path and offset to the side are the hardest to filter out.