针对水下辅助导航相关匹配算法的特征区最优航迹规划

水下辅助导航中修正惯导累积误差的主要方式之一是利用水下地球物理场的分布特征进行相关匹配以实现准确定位,但是相同的匹配算法对于特征区内不同的航迹规划其性能却表现各异。针对上述问题提出了平行航迹差异度算法,实现了特征区的最优航迹和最优通道规划。水下辅助导航仿真实验表明:该算法可作为水下辅助导航相关匹配算法的一部分,而且可以有效地提高水下载体的导航精度。

Optimum trajectory planning in characteristic areas for underwateraided navigation correlation matching algorithms

One of the fundamental methods of modifying inertial navigation system cumulated error in underwater aided navigation(UAV) is using distributed characters of earth geophysical fields to carry out correlation matching and realize accurate positioning.But different trajectories in chosen fields produce different results with same matching algorithms.In order to solve this problem,a parallel trajectory difference algorithm achieving optimum trajectory and corridor planning was proposed.Simulation experiments in auxiliary UAV indicate that this algorithm,as a part of UAV correlation matching algorithms,can improve underwater vehicle navigation accuracy.