测绘学报 ›› 2026, Vol. 55 ›› Issue (9): 1530-1541.doi: 10.11947/j.AGCS.2026.20260107

• 大地测量学与导航 • 上一篇    下一篇

基于定向天线的GNSS分布式压制干扰方法

刘志衡(), 刘伟平(), 吕志伟, 焦博   

  1. 信息工程大学地理空间信息学院,河南 郑州 450001
  • 收稿日期:2026-03-25 修回日期:2026-06-12 出版日期:2026-10-28 发布日期:2026-10-28
  • 通讯作者: 刘伟平 E-mail:zhliu96@163.com;lwpchxy@sina.com
  • 作者简介:刘志衡(1996—),男,博士生,讲师,研究方向为卫星导航安全与对抗。 E-mail:zhliu96@163.com
  • 基金资助:
    国家自然科学基金(42674052)

GNSS distribute suppression jamming method based on directional antennas

Zhiheng Liu(), Weiping Liu(), Zhiwei Lü, Bo Jiao   

  1. School of Geospatial Information, Information Engineering University, Zhengzhou 450001, China
  • Received:2026-03-25 Revised:2026-06-12 Online:2026-10-28 Published:2026-10-28
  • Contact: Weiping Liu E-mail:zhliu96@163.com;lwpchxy@sina.com
  • About author:Liu Zhiheng (1996—), male, PhD candidate, lecturer, majors in satellite navigation security and countermeasures. E-mail: zhliu96@163.com
  • Supported by:
    The National Natural Science Foundation of China(42674052)

摘要:

针对传统全向天线在GNSS分布式压制干扰中存在的能量利用效率低、部署成本高且隐蔽性差等问题,本文提出一种基于定向天线的GNSS分布式压制干扰方法。该方法以基于斜率最优点的三维空间GNSS分布式压制干扰方法为基础,通过构建定向天线三维椭球辐射模型并建立坐标系转换关系,设计基于几何约束的改进欧氏聚类算法以精准求解天线最优波束指向,同时重构了适配定向天线特性的干扰源部署流程;进一步设计全向-定向天线组合干扰模式,采用逐次择优策略融合双天线优势。仿真结果表明,本文方法在实现约95%目标干扰覆盖率的前提下,相比全向天线方案可减少34.62%~65.63%的干扰源数量;全向-定向组合模式相较纯定向方案可再减少20%~50%的干扰源数量,且天线增益越大,部署规模优化越显著;同时显著降低了信号重叠冗余,提升了能量利用效率与部署隐蔽性。

关键词: 定向天线, 欧氏聚类, 分布式压制干扰, 卫星导航, 可视域分析

Abstract:

To address the issues of low energy utilization efficiency, high deployment costs, and poor concealment associated with traditional omnidirectional antennas in GNSS distribute suppression jamming, this paper proposes a GNSS distribute suppression jamming method based on directional antennas. This method is built upon the 3D space GNSS distributed suppression jamming method based on slope optimal point. By constructing a 3D ellipsoidal radiation model for directional antennas and establishing coordinate transformation relationships, an improved Euclidean clustering algorithm based on geometric constraints is designed to accurately solve the optimal beam pointing of the antenna. Meanwhile, the deployment process of jamming sources is reconstructed to match the characteristics of directional antennas. Furthermore, a combined omnidirectional-directional antenna jamming mode is designed, employing a sequential selection strategy to integrate the advantages of both antennas types. Simulation results show that the proposed method can reduce the number of jamming sources by 34.62% to 65.63% compared with the omnidirectional antenna scheme on the premise of achieving approximately 95% of the target jamming coverage. The combined omnidirectional-directional mode further reduces the number of jamming sources by 20% to 50% relative to the purely directional solution. Moreover, the higher the antenna gain, the more significant the deployment scale optimization. At the same time, it significantly reduces signal overlap redundancy, improving energy utilization efficiency and deployment concealment.

Key words: directional antenna, Euclidean clustering, distribute suppression jamming, satellite navigation, viewshed analysis

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