一种优化窄带低轨卫星通信对导航信号接收干扰的方法
网络安全与数据治理
谭富元，易川，袁谅
中国星网网络应用有限公司
摘要： 随着卫星通信技术的发展和进步，窄带低轨通导一体终端的应用备受关注。但是，窄带低轨通导一体终端发射通信信号时，通常会对导航信号接收产生干扰，直接影响终端定位业务。为解决该问题，提出了一种优化窄带低轨卫星通信对导航信号接收干扰的方法。该方法首先构建了一种“信号目标范围模型”，然后基于差分算法提出了一种新的检测算法，用于确定同时满足通信和导航业务要求的天线方向更优个体解。一旦检测到干扰情况，基于该方法迅速调整通信天线与导航天线方向，使导航接收信号恢复正常。通过MATLAB对该方法进行了仿真实验，实验结果进一步证明了该方法的可行性。
中图分类号：TN927.2；TN967.1文献标志码：ADOI:10.19358/j.issn.2097-1788.2026.05.006
中文引用格式：谭富元，易川，袁谅. 一种优化窄带低轨卫星通信对导航信号接收干扰的方法［J］.网络安全与数据治理，2026，45（5）：40-47.
英文引用格式：Tan Fuyuan，Yi Chuan，Yuan Liang. A method for optimizing the interference of narrowband loworbit satellite communication on the reception of navigation signals［J］.Cyber Security and Data Governance，2026，45（5）：40-47.
中文引用格式：谭富元，易川，袁谅. 一种优化窄带低轨卫星通信对导航信号接收干扰的方法［J］.网络安全与数据治理，2026，45（5）：40-47.
英文引用格式：Tan Fuyuan，Yi Chuan，Yuan Liang. A method for optimizing the interference of narrowband loworbit satellite communication on the reception of navigation signals［J］.Cyber Security and Data Governance，2026，45（5）：40-47.
A method for optimizing the interference of narrowband low-orbit satellite communication on the reception of navigation signals
Tan Fuyuan，Yi Chuan，Yuan Liang
China StarNet Network Application Co.,Ltd.
Abstract： With the development and progress of satellite communication technology, the application of narrowband low-orbit integrated communication and navigation terminals has attracted much attention. However, when narrowband low-orbit integrated communication and navigation terminals transmit communication signals, they usually interfere with the reception of navigation signals, directly affecting the positioning services of the terminals. To solve this problem, a method for optimizing the interference of narrowband low-orbit satellite communication on the reception of navigation signals is proposed. This method first constructs a "signal target range model", and then proposes a new detection algorithm based on the differential algorithm to determine the antenna direction with better individual solutions that simultaneously meet the requirements of communication and navigation services. Once interference is detected, the communication antenna and navigation antenna directions are quickly adjusted based on this method to restore the normal reception of navigation signals. The method was simulated and experimented with MATLAB, and the experimental results further prove the feasibility of the method.
Key words : satellite communication; integrated communication and navigation terminals; target model; differential algorithm
引言
窄带低轨卫星网络凭借覆盖范围广、传输时延低、部署灵活等优势［1-3］，已成为全球通信网络补盲、泛在连接的核心支撑技术，在物联网、应急通信、偏低地区接入等场景中展现出不可替代的价值［4-5］。
随着行业应用市场需求增长，以结合窄带低轨卫星通信方案和导航方案为一体的通导一体终端备受关注，应用前景广阔［6-7］。针对车联网、航空航海、智慧城市、物流追踪、灾害救灾等场景，行业厂家已陆续基于窄带低轨通导一体终端研制相关解决方案，例如窄带低轨通导一体手持终端、窄带低轨通导一体便携终端等。
但是，窄带低轨通导一体终端在发射窄带低轨卫星通信信号时，其产生的杂散、谐波等非期望辐射信号，易对导航信号接收产生干扰，导致终端接收到的导航数据异常，直接影响终端定位业务［8-10］，该问题在通信与导航天线间距较近的小型化通导一体终端中表现尤为突出。因此，如何有效降低窄带低轨卫星通信对导航信号接收所产生的干扰，已成为窄带低轨通导一体终端应用和推广的关键技术问题。
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作者信息：
谭富元，易川，袁谅
(中国星网网络应用有限公司，重庆401121)
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