[1]汪义东,郑 宏.基于IWR1642的雷达水位计设计[J].江苏水利,2021,(07):14-18.
　WANG Yidong,ZHENG Hong.Design of radar water level gauge based on IWR1642[J].JIANGSU WATER RESOURCES,2021,(07):14-18.
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基于IWR1642的雷达水位计设计()
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《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2021年07期
页码:
14-18
栏目:
水文水资源
出版日期:
2021-07-28

文章信息/Info

Title:
Design of radar water level gauge based on IWR1642
文章编号:
1007-7839(2021)07-0014-05
作者:
汪义东1; 2; 郑 宏3
(1.水利部水文水资源监控工程技术研究中心，江苏 南京 210012; 2.江苏南水科技有限公司，江苏 南京 210012; 3.水利部南京水利水文自动化研究所，江苏 南京 210012)
Author(s):
WANG Yidong1; 2; ZHENG Hong3
(1.Hydrology and Water Resources Monitoring Engineering Technology Center，Ministry of Water Resources，Nanjing 210012，China; 2.Jiangsu Naiwch Corporation,Nanjing 210012,China; 3.Nanjing Automation Institute of Water Resources and Hydrology，Ministry of Water Resources, Nanjing 210012，China)
关键词:
毫米波传感器;  雷达水位计;  调频连续波;  平面微带天线;  差频信号
Keywords:
millimeter wave sensor;  radar water level gauge;  frequency modulated continuous wave(FMCW);  planar microstrip antenna;  difference frequency signal
分类号:
TV131.66
文献标志码:
B
摘要:
针对雷达天线前端模拟电路复杂、成本高的问题,设计了一种基于毫米波传感器IWR1642的77GHz雷达水位计。完整设计了雷达水位计所需要的部件,包括平面微带天线、硬件电路以及外壳,采用加速度传感器矫正安装角度,RS485通讯传递数据。阐述了雷达水位计软件的工作流程,采用在快速傅里叶变换的基础上进行选带傅里叶变换的算法计算差频信号的频率。制作了水位计测试样机,并在实验室中完成测试,测量误差小于1 cm,满足雷达水位计的测量要求。
Abstract:
Aiming at the complexity and high cost of the radar antenna front-end analog circuit，a 77GHz radar water level gauge based on the millimeter wave sensor IWR1642 was designed. The components required for the radar water level gauge were completely designed，including a planar microstrip antenna，hardware circuit and the shell，using the acceleration sensor to correct the installation angle，and RS485 communication to transmit data. The workflow of the radar water level gauge software was described. The algorithm of band-selective Fourier transform based on fast Fourier transform was used to calculate the frequency of difference frequency signal. A prototype of a water level gauge was produced and tested in a laboratory. The measurement error was less than 1 cm，which met the measurement requirements of a radar water level gauge.

参考文献/References:

[1] SKOLNIK M I. 雷达系统导论 [M]. 左群生，译. 北京:电子工业出版社，2014:130-138.
[2] MAHAFZA B R. 雷达系统分析与设计[M]. 周万幸，译. 北京: 电子工业出版社，2016:364-366.
[3] JURGEN H，ERAY T，RAIK S，et al. Millimeter-wave technology for automotive radar sensors in the 77 GHz frequency band[J]. IEEE Trans Microw Theory Tech，2012，60(3):845-860.
[4] VASANELLI C，BATRA R，SERIO A，et al. Assessment of a millimeter-wave antenna system for MIMO radar application[J]. IEEE Antennas and Wireless Propagation Letters，2017，16:1261-1264.
[5] 张慧，余英瑞，徐俊，等. 77 GHz车载毫米波中远距雷达天线阵列设计[J]. 强激光与粒子束，2017，29(10):48-51.
[6] 严煜铭，廖成，周文君，等. 基于相位梯度超表面的高增益透镜天线设计[J]. 电子元件与材料，2019，38(9):77-81.
[7] Karthik Ramasubramanian Jasbir Singh. 利用77 GHz毫米波进行液位感测[J]. 今日电子，2017(8):42-45.
[8] 冯志华，刘永斌，张健. 用在频谱细化中Chirp-Z变换的特性分析[J]. 信号处理，2006，22(5):9.
[9] 丁康，潘成灏，李巍华. ZFFT与Chirp-Z变换细化选带的频谱分析对比[J]. 振动与冲击，2006，25(6):9-12.

备注/Memo

备注/Memo:
收稿日期:2020-12-15
基金项目:国家重点研发计划项目(2017YFC0405700)
作者简介:汪义东(1992—),男,本科,主要从事水文仪器的研发工作。E-mail: 512528536@qq.com
更新日期/Last Update: 2021-07-28