A four channel 24-GHz FMCW radar sensor with two-dimensional target localization capabilities

R. Feger, A. Haderer, Stefan Dipl.-Ing. Schuster, S. Scheiblhofer, A. Stelzer
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引用次数: 11

Abstract

The measurement of different target parameters using radar systems has been an active research area for the last decades. Particularly target angle measurement is a very demanding topic, because obtaining good measurement results often goes hand in hand with extensive hardware effort. Especially for sensors used in the mass market, e.g. in automotive applications like adaptive cruise control this may be prohibitive. Therefore we address target localization using a compact frequency-modulated continuous-wave (FMCW) radar sensor. The angular measurement results are improved compared to standard beamforming methods using an adaptive beamforming approach. This approach will be applied to the FMCW principle in a way that allows the use of well known methods for the determination of other target parameters like range or velocity. The applicability of the developed theory will be shown on different measurement scenarios using a 24-GHz prototype radar system.
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具有二维目标定位能力的四通道24ghz FMCW雷达传感器
近几十年来,利用雷达系统测量不同目标参数一直是一个活跃的研究领域。特别是目标角度测量是一个要求很高的课题,因为要获得良好的测量结果往往需要大量的硬件工作。特别是对于大众市场中使用的传感器,例如在自适应巡航控制等汽车应用中,这可能是令人望而却步的。因此,我们使用紧凑型调频连续波(FMCW)雷达传感器来解决目标定位问题。采用自适应波束形成方法,与标准波束形成方法相比,角度测量结果得到了改善。这种方法将应用于FMCW原理,在某种程度上允许使用众所周知的方法来确定其他目标参数,如距离或速度。所开发理论的适用性将在使用24 ghz原型雷达系统的不同测量场景中进行展示。
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