UHF波段雷达面临基站干扰信号的极化特性测量与分析

任博; 施龙飞; 王国玉

doi:10.12000/JR15134

UHF波段雷达面临基站干扰信号的极化特性测量与分析

doi: 10.12000/JR15134

1.
(国防科技大学电子信息系统复杂电磁环境效应国家重点实验室长沙 410073)
2.
(国防科技大学电子科学与工程学院长沙 410073)

基金项目:

国家自然科学基金(61490692, 61201336)

详细信息

作者简介:
任博(1986–),男,河北省邯郸市人,2009年获得北京航空航天大学工学学士学位,2011年获得国防科技大学电子科学与工程学院硕士学位,博士生,研究方向为雷达极化信息处理、综合电子信息系统建模与仿真。E-mail:rb410@139.com施龙飞,男,中国科学院电子学研究所研究员,博士生导师,研究方向为干涉合成孔径雷达系统技术和方法。王国玉,男,研究员,1999年于国防科技大学获得博士学位,现为国防科技大学博士生导师,主要研究方向包括信号处理、雷达系统与电磁环境效应的建模与仿真。

通讯作者:
任博rb410@139.com

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- 被引次数: 0
出版历程
- 收稿日期: 2015-12-31
- 修回日期: 2016-01-22
- 网络出版日期: 2016-04-28

Polarimetric Analysis of the Interference from Base Stations to UHF-band Radar

1.
(State Key Laboratory of Complex Electromagnetic Environment Effects on Electronics & Information System, Changsha 410073, China)
2.
(College of Electronic Science and Engineering, National University of Defense Technology,Changsha 410073, China)

Funds:

The National Natural Science Foundation of China (61490692, 61201336)

摘要

摘要: 移动通信基站的下行信号会影响UHF波段雷达的目标探测和跟踪,开展基站干扰环境的极化特性测量与分析,是利用极化处理手段对抗此类干扰的基础和依据。该文首先建立了UHF波段双极化雷达对基站信号接收模型,推导了极化比和极化度估计量的概率密度函数用以表征干扰环境极化统计特性;而后分别开展了对单个基站和多个基站的雷达外场接收测量试验,实验结果说明了确定性描述方法仅适用于表征极化度较高的单个基站信号,对多基站或极化度较低的情形则不再适用。通过实测数据与理论模型的拟合验证了该文给出的统计模型在描述两种场景下干扰信号统计特性上的正确性和适用性。
- 极化雷达 /
- 极化度 /
- 通信基站 /
- 电磁环境测量
Abstract: Radar detection and tracking performance in the UHF-band can be influenced by the downlink signals of communication base stations. The polarimetric properties of interference from base stations are measured and analyzed as a basis for suppressing this type of interference by a polarization processing method. In this study, we establish signal models from the base station for dual-polarization UHF-band radar. We express the Probability Density Functions (PDF) of the estimated polarization ratio and degree of polarization in a closed form and use them to describe the statistical properties of the interference environment. We developed polarimetric radar reception experiments for the signals from both Single-Base Stations (SBS) and Multi-Base Stations (MBS). Experimental results proved that deterministic polarized descriptions are appropriate only for signals from SBS but not from MBS or from stations with a low DoP (Degree of Polarization). However, the proposed statistical method can be used to describe both SBS and MBS cases, which we demonstrated by comparing the theoretical models with real measurement data.
- Polarimetric radar /
- Degree of polarization /
- Communication base stations /
- Measurement of electromagnetic environment

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参考文献(16)

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