Design of a 24 GHz FMCW radar system based on sub‐harmonic generation
Design of a 24 GHz FMCW radar system based on sub‐harmonic generation
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基于次谐波生成的 24 GHz FMCW 雷达系统设计
DOI：
10.1049/iet-rsn.2018.5050
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
F. Ellinger
中科院分区：
文献类型：
--
作者：
Naglaa El Agroudy;M. El;N. Joram;F. Ellinger
提出了一种基于次谐波产生的新型调频连续波(FMCW)雷达系统，该系统采用24 GHz分频10作为有源反射面标签。设计并制作了基于GF45 nm绝缘体上硅工艺的24 GHz积木的实用样机，以及用于2.4 GHz接收机和基带的GF0.18μm 7WL双极互补金属氧化物半导体工艺。系统测量结果表明，与传统的主雷达不同，该系统不受询问信号直接反射产生的强多径干扰的影响。该系统采用环路测量，测距精度达到3.7 mm。此外，在室内环境下的测距结果表明，测距精度和精度分别为5.8和22.3 cm，优于文献中的其他FMCW雷达。
This study presents a novel frequency modulated continuous wave (FMCW) radar system based on sub-harmonic generation, where a 24 GHz frequency divider-by-10 is used as an active reflector tag. A practical prototype is designed and fabricated on a GF45nm-Silicon on Insulator (SOI) technology for the 24 GHz building blocks, while a GF0.18 μm 7WL Bipolar Complementary Metal Oxide Semiconductor (BiCMOS) technology was used for the 2.4 GHz receiver and baseband. System measurement results show that as opposed to conventional primary radars, the proposed system is immune to strong multi-path interferences resulting from direct reflections of the interrogating signal. The system achieves a ranging precision of 3.7 mm with loop measurements. Moreover, when measured in an indoor environment, the ranging results show a ranging precision and accuracy of 5.8 and 22.3 cm, respectively, which outperform other FMCW radars in the literature.