系统工程与电子技术 ›› 2026, Vol. 48 ›› Issue (7): 2144-2152.doi: 10.12305/j.issn.1001-506X.2026.07.02

• 电子技术 • 上一篇    

基于蛇优化的单站机载无源定位算法

郭立民(), 张逸飞, 马思达   

  1. 哈尔滨工程大学信息与通信工程学院,黑龙江 哈尔滨 150001
  • 收稿日期:2025-05-28 修回日期:2025-08-13 接受日期:2025-08-21 出版日期:2025-10-28 发布日期:2025-10-28
  • 通讯作者: 郭立民 E-mail:guolimin@hrbeu.edu.cn

Single station airborne passive positioning algorithm based on snake optimizer

Limin GUO(), Yifei ZHANG, Sida MA   

  1. School of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China
  • Received:2025-05-28 Revised:2025-08-13 Accepted:2025-08-21 Online:2025-10-28 Published:2025-10-28
  • Contact: Limin GUO E-mail:guolimin@hrbeu.edu.cn

摘要:

针对单站机载定位环境中定位精度有待提升的问题,提出一种基于元启发式蛇优化(snake optimizer,SO)算法的单站无源定位方法。该方法利用相位干涉仪测量目标相位差,构建代价函数,通过 SO 算法对代价函数进行寻优求解目标位置。为验证所提方法的有效性,对3种飞行模式下的机载定位模型进行仿真研究,并对比不同频率下的定位测试数据。实验结果表明,与经典智能算法相比,在低相位差误差场景中,SO 算法的定位精度提升约 1.4%;在相位差误差较大的场景中,定位精度提升约 2%;在不同频段目标辐射源的定位性能分析中,定位准确率提升约 2.3%。SO 算法能有效提高单站机载定位的精度,在复杂电磁环境下具有良好的适应性和应用价值。

关键词: 目标定位, 相位差定位, 蛇优化算法, 几何精度因子

Abstract:

Aiming at the problem that the positioning accuracy needs to be improved in the single station airborne positioning environment, a single station passive positioning method based on the meta-heuristic snake optimizer (SO) algorithm is proposed. This method uses a phase interferometer to measure the phase difference of the target, constructs a cost function, and optimizes the cost function to solve the target position through the SO algorithm. In order to verify the effectiveness of the proposed method, the airborne positioning models with three flight modes are simulated and the positioning test data at different frequencies are compared. Experimental results show that compared with the classical intelligent algorithms, the positioning accuracy of SO algorithm is improved by about 1.4% in the low phase difference error scenario. In scenarios with large phase difference errors, the positioning accuracy is improved by about 2%. In the analysis of the positioning performance of target radiation sources in different frequency bands, the positioning accuracy is improved by about 2.3%. SO algorithm can effectively improve the accuracy of single station airborne positioning, and has good adaptability and application value in complex electromagnetic environments.

Key words: target positioning, phase difference positioning, snake optimization (SO) algorithm, geometric dilution of precision

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