多通道多脉冲墙体透视雷达微弱目标检测技术研究

This project mainly focuses on the problem of weak target detection with multi-channel and multi-pulse wall penetration radar (MMWPR). The theory for MMWPR target detection can be improved via the studies of the wall layout imaging approach, the wall clutter mitigation method with single-channel and single-pulse data, the multi-target segmentation method and the coherent integration algorithm for moving target echoes in 3-D signal space. We will solve the key technologies, and propose a weak target detection algorithm for both stationary and moving targets which makes full use of spatial and temporal degrees. We will validate the theoretical results and technological achievements with both simulated and experimental data. The research of this project can provide the theoretical and technical basis for the applications of weak target detection technologies in the real WPR system. It is of great significance to enhance the performance of the imaging radar systems.

本项目旨在解决多通道多脉冲墙体透视雷达（MMWPR）微弱目标检测的问题。通过对墙体布局成像方法、基于单通道单脉冲的墙体杂波抑制方法、三维信号空间多目标分割及动目标信号相干积累方法的研究，完善MMWPR目标检测理论体系。突破关键技术问题，提出一套充分利用空时自由度实现静止、运动微弱目标同时检测的算法，从仿真实验和实测数据两方面，对本项目所取得的理论和技术成果进行验证。本项目的研究为微弱目标检测技术推广应用到实际墙体透视雷达系统中奠定理论和技术基础，对提升成像雷达系统的性能，具有重要的理论意义和实际应用价值。

利用多通道多脉冲墙体透视雷达进行微弱目标检测，在军事巷战、公安反恐和灾难搜救等领域具有重要的实用价值。本项目针对多通道多脉冲雷达体制下墙体透视探测目标的难点问题，在墙体杂波抑制、多通道多脉冲的运动目标信号相干积累、MIMO 阵列栅瓣抑制、复杂建筑物环境下多径幻象干扰抑制、建筑物布局提取及目标三维轮廓成像等方面展开了研究。仿真和实测数据处理结果验证了所提出的理论与方法的正确性，本项目的研究成果为微弱目标检测技术在墙体透视雷达系统中达到实用水平提供了理论支撑，对实际雷达系统的性能提升具有重要的应用价值。