针对其他非接触式雷达在复杂环境下抗干扰能力差及传统毫米波雷达结构复杂等问题,提出了一种基于FMCW的V波段高精度雷达传感器测距装置。该装置不同于传统毫米波雷达的波导及微波模块组合的设计思路,以高度集成的单片60 GHz毫米波雷达传感器芯片为核心对各子系统进行开发研究。RF子系统产生、发射V波段FMCW信号并在对回波信号进行放大、滤波及混频得到中频信号后,由DSP实时处理子系统处理得到距离,通过UART串口传输到上位机中进行显示,整个过程由ARM子系统全局控制。在微波暗室中的实验结果表明,对于近程单一静止目标,测距位移精度达到0.1 mm。该装置的研究对于推进近程高精度测距毫米波雷达的开发具有重要价值。
Abstract
Aiming at the poor anti-interference ability of other non-contact radars in complex environments and the complex structure of traditional millimeter-wave radars,a V-band high-precision radar sensor ranging device based on FMCW is proposed.This device is different from the design idea of the combination of waveguide and microwave module of traditional millimeter-wave radar.It develops and researches each subsystem with a highly integrated single-chip 60 GHz millimeter-wave radar sensor chip as the core.After the RF subsystem generates and transmits the V-band FMCW signal and amplifies,filters and mixes the echo signal to obtain the intermediate frequency signal,the DSP real-time processing subsystem processes the distance and transmits it to the host computer for display through the UART serial port.The process is controlled globally by the ARM subsystem.The experiment results in the anechoic chamber show that for a short-range single stationary target,the displacement accuracy of ranging can reach 0.1 mm.The research of this device has important application value for promoting the development of short-range high-precision ranging millimeter-wave radar.
关键词
测距传感器 /
ARM /
近程测距 /
TMS320C674
Key words
ranging sensor /
ARM /
short-range ranging /
TMS320C674
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基金
*山西省研究生创新项目资助(2021Y607)。
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