3 ms·
Just took a radars course and we definitely spent a whole section on just atmospheric effects / defraction. My only guess about how you could maybe lower the er
by stefanpie 6y ago
Just took a radars course and we definitely spent a whole section on just atmospheric effects / defraction. My only guess about how you could maybe lower the error is by monitoring and measuring the condition of the atmophere and building a model that can use that data to apply corrections and reduce error to your image.
- TheSpiceIsLife 6y agoIf there was a known object in an image could a high resolution image of the known object be used to compensate for atmospheric diffraction effects?
- bronson 6y agoOne example is a laser guide star: https://en.m.wikipedia.org/wiki/Laser_guide_star https://en.m.wikipedia.org/wiki/Laser_guide_star
- cartoonfoxes 6y agoYes. Ssshhh.
- xioxox 6y agoAs I mentioned above, there is a technique called lucky imaging, where you take lots of short exposures and only use the best ones. In astronomy, this can be used to reach the diffraction limit. You need a bright source, however, and it provides a narrow field of view.
- craftinator 6y agoAnother technique is to use multiple camera sources spread out over an area. The angle between the cameras is known, so differences in the images caused by diffraction and atmospheric aberrations can be computed out to some degree.