系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (10): 3275-3282.doi: 10.12305/j.issn.1001-506X.2026.10.01

• 电子技术 •    

基于频间协同的GNSS全频点信号快速捕获方法

刘勇1,2(), 高勋章1, 刘振1, 蒋云翔2, 满小三2,3   

  1. 1. 国防科技大学电子科学学院,湖南 长沙 410073
    2. 长沙金维集成电路股份有限公司,湖南 长沙 410205
    3. 中南大学地球科学与信息物理学院,湖南 长沙 410083
  • 收稿日期:2025-07-10 出版日期:2026-10-25 发布日期:2026-09-30
  • 通讯作者: 刘勇 E-mail:liuyong8834@126.com
  • 作者简介:高勋章(1972—),男,研究员,博士,主要研究方向为雷达信息处理、智能目标识别、机器学习
    刘 振(1983—),男,教授,博士,主要研究方向为雷达目标识别与对抗
    蒋云翔(1986—),男,高级工程师,博士,主要研究方向为GNSS信号处理、LEO信号处理、卫星通导融合处理
    满小三(1989—),男,工程师,博士研究生,主要研究方向为GNSS高精度定位
  • 基金资助:
    湖南省科技创新计划(2024RC3255)资助课题

Fast acquisition method for GNSS full-frequency signals based on inter-frequency collaboration

Yong Liu1,2(), Xunzhang Gao1, Zhen Liu1, Yunxiang Jiang2, Xiaosan Man2,3   

  1. 1. College of Electronic Science and Technology,National University of Defense Technology,Changsha 410073,China
    2. Changsha Jinwei Integrated Circuit Co.,Ltd.,Changsha 410205,China
    3. School of Geosciences and Info-Physics,Central South University,Changsha 410083,China
  • Received:2025-07-10 Online:2026-10-25 Published:2026-09-30
  • Contact: Yong Liu E-mail:liuyong8834@126.com

摘要:

针对全球卫星导航系统(global navigation satellite system,GNSS)全频点接收机存在的捕获效率低、捕获资源开销大、信号锁定时间长等问题,提出一种基于频间协同的快速捕获方法。首先,为各GNSS系统选取一个主频点,其他频点都为副频点;然后,捕获引擎仅需对主频点进行捕获以及捕获转跟踪处理;同时,利用主频点跟踪信息,对副频点实施跟踪转跟踪并行处理。实验结果表明,相较于传统方法和跟踪辅助捕获方法,所提方法断电重启后锁定100个跟踪通道的时间分别缩短了70.2%和43.9%,失锁重捕定位时间分别减少了62.2%和41.7%,平均功耗分别降低了10.7%和9.7%。所提方法在不增加硬件资源的前提下,对全频点接收机的信号锁定时间、定位时间和系统功耗改善明显,为低成本、低功耗全频点接收机设计提供了新路径。

关键词: 全球卫星导航系统, 全频点, 频间协同, 快速捕获, 跟踪转跟踪

Abstract:

To address the issues of low acquisition efficiency, high acquisition resource consumption, and long signal locking time in global navigation satellite system (GNSS) full-frequency receivers, a fast acquisition method based on inter-frequency collaboration is proposed. First, a primary frequency is selected for each GNSS system, while the remaining frequencies are designated as secondary frequencies. Second, the acquisition engine only performs acquisition and acquisition-to-tracking processing on the primary frequency. Meanwhile, using the tracking information of the primary frequency, parallel tracking-to-tracking processing is implemented for secondary frequencies. Experimental results demonstrate that, compared to the traditional method and the tracking-assisted acquisition approach, the proposed method shortens the time to lock 100 tracking channels after power-off and restart by 70.2% and 43.9%, reduces the reacquisition time by 62.2% and 41.7%, and decreases the average power consumption by 10.7% and 9.7%, respectively. The proposed method demonstrates significant improvements in signal locking time, positioning time, and system power consumption for full-frequency receivers without requiring additional hardware resources, thus offering a new pathway for the design of low-cost, low-power full-frequency receivers.

Key words: global navigation satellite system (GNSS), full-frequency, inter-frequency collaboration, fast acquisition, tracking-to-tracking

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