A fiber-distributed multistatic ultra-wideband (UWB) radar is proposed and demonstrated. The proposed radar includes a central office (CO), two transmitters and a receiver which are connected by optical fibers.
The UWB pulses generated by the two transmitters are designed to have opposite polarities using the complementary transmission and reflection responses of an FBG, so that it is easy to identify in the CO which transmitter the echo pulse is from. An experiment is carried out. 2-D localization of a target is realized using the proposed radar. The localization accuracy is of centimeter level.