Multi-UUV Navigation Method Based on Particle Swarm Optimization Algorithm
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摘要: 无人水下航行器(UUV)协同导航过程中, 惯性导航系统(INS)在水下工作时的定位误差随时间累积, 在不升出天线的情况下, 难以利用全球定位系统(GPS)对惯导误差进行修正, 地磁导航虽可以在水下修正惯导系统的误差, 但传统的地磁匹配导航对先验地磁图过于依赖。受到生物利用地磁进行导航行为的启发, 文中针对多UUV仿生协同导航问题, 提出一种基于粒子群优化(PSO)算法的多UUV仿生协同导航方法, 将导航过程归结为多目标搜索问题, 通过共享UUV间的信息, 完成导航任务, 实时对惯导系统进行定位误差的修正。仿真结果证实了该方法的有效性。Abstract: Global positioning system(GPS) cannot be used to correct the accumulated inertial navigation positioning error when inertial navigation system(INS) works underwater. Although traditional geomagnetic matching navigation can solve this problem, this navigation method relies too much on prior geomagnetic map. The authors are inspired by the fact that some of living beings use geomagnetism for navigation, and propose a multi-unmanned undersea vehicle(UUV) bionic cooperative navigation algorithm based on particle swarm optimization. The navigation process is reduced to a multi-objective search problem. Then the navigation tasks are accomplished by sharing the information among UUVs, and the positioning errors of the INS are corrected in real time. Simulation result verifies the effectiveness of the proposed method.
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