Pulse-Doppler Radars

Pulse-Doppler radar offers significantly improved range compared to an FMCW radar, due to the fact that the transmit pulse is turned off prior to receiving. This allows the receiver dynamic range to be increased significantly, due to the elimination of the continuous transmit in an FMCW system that acts as an interfering signal. The downside is that there is now a minimum range at which reception can be performed, determined by the transmit pulse width. Most defense radars are pulse-Doppler due to the significant performance increase in range afforded by this technology. Pulse-Doppler radars are generally significantly more complex and costly than corresponding FMCW radars, both in the hardware complexity and the back-end processing. Applied Radar has developed numerous pulse-Doppler radars, and has a working pulse-Doppler radar on its corporate office rooftop that acts as an R&D platform.