D.O.R.T. method as applied to electromagnetic subsurface sensing

Dort Method and Time Reversal as Applied to Subsurface Electromagnetic Probing

The D.O.R.T method provides an interpretation of experiments achieved in the time domain with ultrasonic pulses, where it is shown that the back emitted time-reversed scattered wave focuses on the bright point. Our goal is to study whether this method is of interest for detecting and imaging buried objects with the help of electromagnetic waves. Calculations in the frame of low frequency approx...

Three-Dimensional Electromagnetic Scattering from Layered Media with Rough Interfaces for Subsurface Radar Remote Sensing

Recent Advances on the Use of Kernel-based Learning-by-examples Techniques for Electromagnetic Subsurface Sensing

Dynamic Programming Applied to Electromagnetic Satellite Actuation

Electromagnetic formation flight (EMFF) is an enabling technology for a number of space mission architectures. While much work has been done for EMFF control for large separation distances, little work has been done for close-proximity EMFF control, where the system dynamics are quite complex. Dynamic programming has been heavily used in the optimization world, but not on embedded systems. In t...

Adjoint shape optimization applied to electromagnetic design.

We present an adjoint-based optimization for electromagnetic design. It embeds commercial Maxwell solvers within a steepest-descent inverse-design optimization algorithm. The adjoint approach calculates shape derivatives at all points in space, but requires only two "forward" simulations. Geometrical shape parameterization is by the level set method. Our adjoint design optimization is applied t...