Novel Algorithm for High Resolution Passive Radar Imaging with ISDB-T DIGITAL TV Signal

摘要

We have studied passive radar with digital broadcasting terrestrial signals for imaging moving and stationary targets. We combined multiple TV channels to improve the range resolution. In order to reduce the high-level sidelobes caused by the frequency gaps among multiple channels, a low rank matrix completion based method is proposed. We present the experiment results of range- Doppler mapping of moving targets, high-resolution time delay estimation, and passive synthetic aperture radar (SAR) imaging of stationary targets. It is shown that, by the designed system, a landing airplane can be detected and tracked. By combining multiple TV channels, high resolution time delay estimation can be achieved. Buildings located within 55 meters can be effectively imaged by the proposed method.