Synthetic Impulse and Aperture Radar (SIAR)Synthetic Impulse and Aperture Radar (SIAR) is a microwave imaging technology capable of seeing through walls made of materials as diverse as drywall, wood, concrete, and brick. There are numerous applications for SIAR, such as improvised explosive device detection, localization and identification, search and rescue, as well as identification of building inhabitants in combat areas, hostage situations, drug control, and border enforcement. The