一种改进的宽波束线阵雷达物位测量算法

doi:10.19665/j.issn1001-2400.2021.02.021

西安电子科技大学学报 ›› 2021, Vol. 48 ›› Issue (2): 165-172.doi: 10.19665/j.issn1001-2400.2021.02.021

一种改进的宽波束线阵雷达物位测量算法

谢垚^1,²(),黄默¹(),王长元¹(),张圆圆¹(),荆琛¹()

1.中国科学院微电子研究所,北京 100029
2.中国科学院大学,北京 100049

收稿日期:2020-04-16 修回日期:2021-01-04 出版日期:2021-04-20 发布日期:2021-04-28
作者简介:谢垚(1994—),男,中国科学院微电子研究所博士研究生,E-mail: xieyao@ime.ac.cn|黄默(1973—),男,研究员,博士,E-mail: huangmo@ime.ac.cn|王长元(1988—),男,博士,E-mail:wangchangyuan@ime.ac.cn|张圆圆(1981—),女,副研究员,硕士,E-mail: zhangyuanyuan@ime.ac.cn|荆琛(1992—),男,助理研究员,硕士,E-mail: jc_nuc@163.com
基金资助:
近地面探测技术重点实验室基金(TCGZ2018A001);博士后科学基金(2019M650801)

Improved algorithm for wide beam linear array radar level meter measurement

XIE Yao^1,²(),HUANG Mo¹(),WANG Changyuan¹(),ZHANG Yuanyuan¹(),JING Chen¹()

1. Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China
2. University of Chinese Academy of Sciences,Beijing 100049,China

Received:2020-04-16 Revised:2021-01-04 Online:2021-04-20 Published:2021-04-28

摘要/Abstract

摘要：

基于宽波束天线雷达物位测量,提出了一种改进的宽波束线阵雷达物位测量算法,用于解决宽波束雷达物位测量时强杂波干扰导致的物位测量错误问题。利用均匀线阵调频连续波雷达,首先进行强散射点检测及其参数估计,获取强散射点的距离、角度和幅值信息;进而在分析其产生机理的基础上,进行多维有效点判别,从强散射点集合中识别物位测量有效点。粮仓实地试验采用77 GHz宽波束线阵雷达对低介电常数物料进行测量,在现实工业环境中实现了物位的准确、稳定测量。从算法角度突破了雷达物位测量对天线波束宽度的限制,对小型化、低成本的宽波束雷达物位计的研发应用具有重要意义。

关键词: 物位测量, 宽波束, 杂波, 强散射点, 物位计

Abstract:

Based on the wide beam antenna radar level meter,an improved algorithm for wide beam linear array radar level meters is developed to solve the problem that the detection performance of wide beam antenna radar is extremely vulnerable to the strong background clutter.For a uniform linear array frequency modulated continuous wave radar,the first step of the algorithm consists of the detection of strong scattering points through range and estimation direction of arrival for strong scattering points;the second step is the recognition of efficient points from strong scattering points set on the basis of analyzing the production condition of strong scattering points.The measurement value was obtained from the efficient points set.A set of field experiments was conducted in a grain processing factory with a 77 GHz wide beam linear array radar level meter.The proposed algorithm can achieve an accurate and steady measurement of the low-dielectric constant material level in harsh industrial conditions.This study does away with the restriction of beam width,which is of great significance for the popularization and application of miniaturized,low-cost wide beam radar level meters.

Key words: level measurement, wide beam, clutter, strong scattering point, level meters

中图分类号:

TN957.51

谢垚,黄默,王长元,张圆圆,荆琛. 一种改进的宽波束线阵雷达物位测量算法[J]. 西安电子科技大学学报, 2021, 48(2): 165-172.

XIE Yao,HUANG Mo,WANG Changyuan,ZHANG Yuanyuan,JING Chen. Improved algorithm for wide beam linear array radar level meter measurement[J]. Journal of Xidian University, 2021, 48(2): 165-172.

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料仓	h		r_s	h_v(真实值)
料仓1	30.0	3.0	1.5	10.0
料仓2	20.0	4.0	3.2	3.0

一种改进的宽波束线阵雷达物位测量算法

Improved algorithm for wide beam linear array radar level meter measurement

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