Imaging in Clutter

Saturday, June 7, 2003 - 4:00pm - 4:50pm
Keller 3-180
George Papanicolaou (Stanford University)
Array imaging, like synthetic aperture radar and Kirchhoff migration in seismic imaging, does not produce good reflectivity images when there is clutter, or random scattering inhomogeneities, between the reflectors and the array. Can the blurring effects of clutter be controlled? I will discuss this issue in some detail and explain why it is a central one for the recent developments in the mathematics of imaging. I will also review briefly the current status of array imaging and I will show in particular that if array data is collected carefully, and there is lots of it, then a good deal can be done to minimize blurring by clutter.