水基附着介质罩对毫米波衰减的理论分析与实验研究

doi:10.3969/j.issn.0372-2112.2017.09.013

电子学报 ›› 2017, Vol. 45 ›› Issue (9): 2143-2148.DOI: 10.3969/j.issn.0372-2112.2017.09.013

水基附着介质罩对毫米波衰减的理论分析与实验研究

杜瑞, 樊养余, 王剑书

西北工业大学电子信息学院, 陕西西安 710072

收稿日期:2016-03-16 修回日期:2017-02-14 出版日期:2017-09-25
- 作者简介:
- 杜瑞,男,1988年8月出生,陕西咸阳人,西北工业大学在读博士生.从事毫米波雷达,阵列信号处理,模式识别方向的研究.E-mail:rdu@mail.nwpu.edu.cn;樊养余,男,1960年4月出生,陕西蓝田人,西北工业大学电子信息学院,博士生导师.主要研究方向:数字图像处理理论与应用,虚拟现实技术,数字信号处理理论与应用,无线光通信技术,虚拟人技术,人工智能,目标检测与识别,信息隐藏,噪声中信号检测与估计等.E-mail:fan_yangyu@nwpu.edu.cn;王剑书,男,1989年6月出生,四川南充人,西北工业大学在读博士生.从事阵列信号处理,模式识别方向的研究.E-mail:565563085@163.com

Theoretical Analysis and Experimental Study of Attenuation at Millimeter Wave Frequency by Water-Based Medium Radome

DU Rui, FAN Yang-yu, WANG Jian-shu

School of Electronics and Information, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China

Received:2016-03-16 Revised:2017-02-14 Online:2017-09-25 Published:2017-09-25

摘要/Abstract

摘要： 本文主要研究多种可能出现的天线罩水基附着介质对毫米波所产生的衰减.本文采用一个四层介质模型来模拟水附着在天线罩上的情况，根据Fresnel方程得到150 GHz和298 GHz电磁波衰减模型，通过测量纯水对毫米波所产生的衰减验证模型的正确性；再测量雨水、海水所产生的衰减，分析常见水基附着介质对毫米波所产生的衰减；最后测量不同盐度的海水对毫米波所产生的衰减，分析了海水盐度对衰减的影响.实验结果证明毫米波的衰减随着天线罩上附着水层厚度的增加呈现出较为规律性增长，而此衰减受中水中溶解物（微小颗粒和盐度）的影响较小.本文对毫米波雷达在雨天等复杂室外条件下的应用具有一定的指导作用.

关键词: 毫米波, 水基介质, 衰减模型

Abstract: The attenuation at millimeter wave frequencies due to water contamination within a radar system is investigated in this paper.A model consisting of four layers of a potential contaminant is adopted in order to simulate the scattering behavior when water deposits are present with a radome.An attenuation parameter based on the Fresnel principle is proposed at 150GHz and 298GHz,which is supported by measurements that are obtained from pure water experiments.The attenuation due to realistic water-based contaminants in a typical outdoor environment,such as rain water,is measured and analyzed; furthermore,attenuations through sea water with different salinity is measured and analyzed.The experimental results show that the attenuation produced by radome water deposits increases with water thickness and this attenuation is not heavily dependent on the particles,such as dirt and salt,within the water-based liquid.The results presented are important in determining the feasibility of millimeter wave radar devices in realistic outdoor environments.

Key words: millimeter wave, water-based medium, attenuation function

中图分类号:

TN956

杜瑞, 樊养余, 王剑书. 水基附着介质罩对毫米波衰减的理论分析与实验研究[J]. 电子学报, 2017, 45(9): 2143-2148.

DU Rui, FAN Yang-yu, WANG Jian-shu . Theoretical Analysis and Experimental Study of Attenuation at Millimeter Wave Frequency by Water-Based Medium Radome[J]. Acta Electronica Sinica, 2017, 45(9): 2143-2148.

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水基附着介质罩对毫米波衰减的理论分析与实验研究

Theoretical Analysis and Experimental Study of Attenuation at Millimeter Wave Frequency by Water-Based Medium Radome

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