A high resolution ultra wideband radar prototype is developed for through the wall imaging. The frequency range of operation of the radar is selected to be 1.85 to 6 GHz in order to have high spatial resolution. Besides the hardware, we have also developed a custom image processing software which attacks the problem of false target recognition and rejection. In this paper, we present our prototype along with various experimental results such as detecting stationary targets and detecting respiratory activity of a human behind a 23 cm thick brick wall
