Small and Expendable DAB-based Passive Radar Sensors for Gap-Filling and Forward Positioning

We demonstrate passive radar detection of small, low and slow flying targets using Digital Audio Broadcast (DAB) signals of opportunity with only minimal sensor complexity and cost. The sensors are based on cheap off-the-shelf components and do not require a separate reference antenna. We show that such sensors could be valuable for stand-in use in a contested area or as gap-fillers for larger passive radar networks at a very attractive price point.