February Fourier Talks 2007

Colloquium Talk: Margaret Cheney


Radar Imaging


Radar imaging is a technology that has been developed, very successfully, within the engineering community during the last 50 years. Radar systems on satellites now make beautiful images of regions of our earth and of other planets such as Venus. One of the key components of this impressive technology is mathematics, and many of the open problems are mathematical ones.

This lecture will explain, from first principles, the basics of radar and the mathematics involved in producing high-resolution radar images.


Prof. Cheney works on inverse problems in acoustics and electromagnetic theory. Some of her work has dealt with low-frequency electromagnetic imaging, in which images are made of objects much smaller than the wavelength of the interrogating fields. More recently she has been working on remote sensing problems, including ground-penetrating radar, sonar, adaptive time-reversal methods in both acoustics and electromagnetics, Synthetic Aperture Radar (SAR), and Inverse Synthetic Aperture Radar (ISAR).