基于改进型Colpitts振荡器的超宽带混沌穿墙成像雷达

We proposed an ultra-wideband chaotic through-wall imaging radar system based on an improved Colpitts oscillator. One-dimensional range information was obtained utilizing the chaotic correlation method, and two-dimensional image was acquired through the antenna scanning. The numerical electromagnetic simulation using finite difference time domain demonstrated that the proposed chaotic radar can detect the human behind the wall. Meanwhile, experimental results showed that this system can go through 0.2 m thickness cinder brick wall to image the single and double metal targets. The down-range and cross-range resolution is 6 cm and 8 cm, respectively.