基于毫米波雷达的目标检测与跟踪的设计与实现

毫米波雷达作为一种重要的无线传感器，可以对周围环境中的物体实现快速、精确的探测和跟踪，由于其成本低廉、抗干扰能力强的特点，毫米波雷达在人类活动识别和自动驾驶等领域有着极其广泛的应用前景。本课题对线性调频连续波雷达信号模型下的目标检测和目标跟踪问题展开了研究，从理论优化和硬件实现两个角度进行展开，在理论角度基于新型电磁材料智能反射面的电磁特性，实现了对感知信道增益的提高，在硬件实现上，达到了对检测目标的高分辨率检测和准确目标跟踪的目的，以期为垂直行业领域的毫米波雷达应用提供技术支撑和理论借鉴。

在理论优化角度，本课题基于新型电磁材料智能反射面能对信号相位信息进行调节的特性，介绍了通过子空间旋转的方法来提高目标跟踪效果的新型方法。与传统提升信道增益方式相比，该方案实现复杂度更低，最后通过仿真实验验证了方案的可行性。

在硬件实现上，与传统单芯片方案不同，本课题采用了四片单芯片毫米波雷达级联的设计方案，并利用此雷达评估板对人体目标进行了目标检测和目标跟踪实验。与传统的单芯片雷达所得到的目标检测和目标跟踪结果相比，该方案得到的目标信息更丰富，能显示出检测目标大致轮廓，目标跟踪轨迹点更多，能在更长时间内显示目标轨迹状态。

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