舰船卫星导航系统中的信号融合误差纠偏技术是指通过将卫星导航系统的多类型信号进行融合，并对其进行误差纠偏，降低信号噪声的同时，改善当前的信号质量，从而提高舰船卫星导航的精度和可靠性。本文首先对舰船卫星导航的坐标系进行详细介绍，分析舰船卫星导航系统的噪声类型和特点，结合分数阶Fourier变换技术搭建了一种舰船卫星导航系统的信息融合平台，对于改善舰船卫星导航的信息精度有重要意义。
The signal fusion error correction technology in ship satellite navigation system refers to the fusion of multiple types of signals in the satellite navigation system and the error correction, reducing signal noise and improving the current signal quality, so as to improve the accuracy and reliability of ship satellite navigation. Firstly, this paper introduces the coordinate system of ship satellite navigation in detail, analyzes the noise types and characteristics of ship satellite navigation system, and builds an information fusion platform of ship satellite navigation system by combining fractional fourier transform technology, which is of great significance for improving the information accuracy of ship satellite navigation.
2023,45(21): 185-188 收稿日期：2023-4-3
DOI：10.3404/j.issn.1672-7649.2023.21.035
分类号：TN966
作者简介：李丹（1985-），女，硕士，讲师，研究方向为信号与信息处理
参考文献：
[1] 曾晓敏. 卫星导航系统中船舶无线通信信号截获方法[J]. 舰船科学技术, 2023, 45(6): 150-153.ZENG Xiao-min. Interception method of ship wireless communication signal in satellite navigation system[J]. Ship Science and Technology, 2023, 45(6): 150-153.
[2] 申成良, 郭承军. 全球卫星导航系统中欺骗信号优化检测仿真[J]. 计算机仿真, 2019, 36(6): 109-113+119.SHEN Cheng-liang, GUO Cheng-jun. Computer Simulation, 2019, 36(6): 109-113+119.
[3] 汪海伦, 丛爽, 尚伟伟, 等. 量子导航定位系统中光学信号传输系统设计[J]. 量子电子学报, 2018, 35(6): 714-722.WANG Hai-lun, CONG Shuang, SHANG Wei-wei, et al. Design of optical signal transmission system in quantum navigation and positioning system[J]. Journal of Quantum Electronics, 2018, 35(6): 714-722.
[4] 艾腾飞, 吕晶, 周轩, 等. 卫星导航系统中多径信号干扰分析[J]. 通信技术, 2016, 49(12): 1607-1613.AI Teng-fei, LV Jing, ZHOU Xuan, et al. Interference analysis of multipath signal in satellite navigation system[J]. Communication Technology, 2016, 49(12): 1607-1613.
[5] 唐毅, 钟文安, 李爽. 双源信号深组合导航在新一代运载火箭制导系统中应用初探[J]. 导航定位学报, 2015, 3(2): 62-66.TANG Yi, ZHONG Wenan, LI Shuang. Preliminary study on the application of dual-source signal deep combined navigation in the guidance system of a new generation of launch vehicle[J]. Journal of Navigation and Positioning, 2015, 3(2): 62-66.
