中文摘要：

超宽带MIMO雷达因其具有的良好分辨率,有效减少阵元数及高速率数据获取能力,近年来在穿墙应用中发挥越来越重要的作用。由于超宽带MIMO雷达自身的天线配置特点和日益增长的应用需求,对信道模型提出新的要求。该文在分析超宽带MIMO穿墙雷达配置特点基础上对信道模型进行了重新建模推导。将建模场景由传统的单堵墙体拓展至建筑物场景,对收发分置下各分量的信号传输路径进行了精确计算,并根据拓展目标理论对各回波分量表达式进行了推导。基于该文模型,提出了一种有效的穿墙动目标成像方法。借助实际穿墙系统,在复杂的外场环境下验证了该文模型正确性,同时表明所提方法能够有效提高成像质量。

英文摘要：

Ultra-WideBand Multi-Input-Multi-Output（UWB MIMO） radar plays more and more important role in through-the-wall application presently, because of its well resolution performance, limited elements requirements and efficient ability for data capturing. However, since its characteristics and increased requirements, it put forward new demands for the corresponding channel construction. This study reconstruct the channel for UWB MIMO through-the-wall radar, following analyzed its characteristics. This study extend the scene form the conventional single-wall-based to building-based. Then this study compute the signal distance of each echo component and derive echo expression based on extended theory. Based on the proposed model, an efficient moving target imaging method is proposed in this paper. Using the TWI equipment in actual environment, the accuracy of the model is validated and the efficient performance in improving image quality is also demonstrated.