A Compact 24 GHz Sensor for Beam-Forming and Imaging
A Compact 24 GHz Sensor for Beam-Forming and Imaging
复制标题
DOI：
10.1109/icarcv.2006.345160
复制
发表时间：
2006-12
期刊：
影响因子：
--
通讯作者：
W. Mayer;A. Gronau;W. Menzel;H. Leier
中科院分区：
文献类型：
--
作者：
W. Mayer;A. Gronau;W. Menzel;H. Leier
设计并实现了用于雷达成像和数字波束形成实验验证的紧凑型 24 GHz 传感器装置。该传感器由 FM-CW 雷达前端和远程雷达电子单元组成。前端由一个由 25 个线性排列元件组成的开关天线阵列组成，由一个发射器和两个连接到单独接收天线元件的并行零差接收器馈电。远程雷达电子单元包括基带信号生成、用于数据采集的模拟输入以及用于测量控制、数据存储和接口处理的可编程数字电路。该传感器可通过标准 PC 接口从笔记本电脑进行操作，从而形成一个非常适合现场测试的紧凑型成像雷达系统。该传感器主要适用于短程和中程汽车应用，但其在信号生成、采样和相干信号处理方面的灵活性使其对许多其他应用领域感兴趣。在本文中，给出了整个系统的详细描述，并介绍了用于成像和波束形成的示例性信号处理方法并通过测量结果进行了演示
A compact 24 GHz sensor setup for experimental verifications of radar imaging and digital beam-forming has been designed and realized. The sensor consists of a FM-CW radar front-end and a remote radar electronic unit. The front-end consists of a switched antenna array of 25 linearly arranged elements fed by one transmitter and two parallel homodyne receivers connected to separate receive antenna elements. The remote radar electronic unit includes the base-band signal generation, analog inputs for data acquisition and programmable digital circuitry for measurement control, data storage and interface handling. The sensor can be operated from a notebook computer via standard PC interfaces, thus forming a compact imaging radar system well suited for field tests. The sensor addresses primarily short and medium range automotive applications, but its flexibility in signal generation, sampling and coherent signal processing makes it interesting for many other application fields. In this article, a detailed description of the total system is given and exemplary signal processing methods for imaging and beam-forming are introduced and demonstrated with measurement results