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。
中圖分類號：TN927.2；TN967.1文獻標志碼：ADOI:10.19358/j.issn.2097-1788.2026.05.006
中文引用格式：譚富元，易川，袁諒. 一種優化窄帶低軌衛星通信對導航信號接收干擾的方法［J］.網絡安全與數據治理，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：譚富元，易川，袁諒. 一種優化窄帶低軌衛星通信對導航信號接收干擾的方法［J］.網絡安全與數據治理，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
窄帶低軌衛星網絡憑借覆蓋范圍廣、傳輸時延低、部署靈活等優勢［1-3］，已成為全球通信網絡補盲、泛在連接的核心支撐技術，在物聯網、應急通信、偏低地區接入等場景中展現出不可替代的價值［4-5］。
隨著行業應用市場需求增長，以結合窄帶低軌衛星通信方案和導航方案為一體的通導一體終端備受關注，應用前景廣闊［6-7］。針對車聯網、航空航海、智慧城市、物流追蹤、災害救災等場景，行業廠家已陸續基于窄帶低軌通導一體終端研制相關解決方案，例如窄帶低軌通導一體手持終端、窄帶低軌通導一體便攜終端等。
但是，窄帶低軌通導一體終端在發射窄帶低軌衛星通信信號時，其產生的雜散、諧波等非期望輻射信號，易對導航信號接收產生干擾，導致終端接收到的導航數據異常，直接影響終端定位業務［8-10］，該問題在通信與導航天線間距較近的小型化通導一體終端中表現尤為突出。因此，如何有效降低窄帶低軌衛星通信對導航信號接收所產生的干擾，已成為窄帶低軌通導一體終端應用和推廣的關鍵技術問題。
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作者信息：
譚富元，易川，袁諒
(中國星網網絡應用有限公司，重慶401121)
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