Experiments with a Near-Clutter-Suppressing FMCW-Radar

A severe problem for target detection and distance measurements with CW-Radar-Systems are unwanted nearby reflectors. They decrease the signal-to-noise-ratio of the system. Therefore long-range applications in general are performed by pulsed radars. With the development of new solid state RF sources and broadband integrated matched filters continuous wave radars become more attractive. They have two important advantages: they are smaller in size and cheaper. Thus it is useful to find new ways to improve the S/N-ratio of these systems. As could be shown /1,2/ the introduction of a spatial filter can improve the performance of a frequency modulated CW-Radar. This report will present first results obtained from a frequency hopped FMCW-System.