Keynote 1: Radar and Magnetic Field Imaging of Hidden Objects

Summary form only given, as follows. The complete presentation was not made available for publication as part of the conference proceedings. Human eyes cannot see objects behind an opaque wall or buried underground. Therefore, an imaging device capable of seeing such a hidden object will be interesting, challenging, and useful. In this talk, I will discuss two subsurface/through-wall imaging modalities, i.e., radar and magnetic-field imaging. In the radar, short-range imaging implies the usage of ultra-wide bandwidth spectrum to achieve high-range resolution. The specifications, design, and implementation of a Ground Penetrating/Through-Wall Radar related to this issue will be presented. A magnetic field imaging system employs magnetometers to obtain a distribution of the induced magnetic field. Two examples of such systems will be presented. The first one employs a built-in magnetometer of a mobile phone (devices), and the second is an imaging system that employs an array of magnetometers. Whereas a single built-in sensor works as a magnetic field scanner, the imaging system that employs a sensor array works in real-time like a camera.