排序方式： 共有2条查询结果，搜索用时 0 毫秒
1
1.
To achieve accurate positioning of autonomous underwater vehicles, an appropriate underwater terrain database storage format for underwater terrain-matching positioning is established using multi-beam data as underwater terrain-matching data. An underwater terrain interpolation error compensation method based on fractional Brownian motion is proposed for defects of normal terrain interpolation, and an underwater terrain-matching positioning method based on least squares estimation (LSE) is proposed for correlation analysis of topographic features. The Fisher method is introduced as a secondary criterion for pseudo localization appearing in a topographic features flat area, effectively reducing the impact of pseudo positioning points on matching accuracy and improving the positioning accuracy of terrain flat areas. Simulation experiments based on electronic chart and multi-beam sea trial data show that drift errors of an inertial navigation system can be corrected effectively using the proposed method. The positioning accuracy and practicality are high, satisfying the requirement of underwater accurate positioning. 相似文献
2.
潜空跨介质无人航行器作为一种能够同时完成水中、空中作业任务的航行器，已成为当前的研究热点。简要介绍了一些关于潜空跨介质航行器的研究成果，以及不同设计思路的原理样机。该类航行器无论是在科学调查或军事上均有广阔的应用前景，但其研制过程也充满各类难点与挑战，当前的技术水平尚无能完成实际作业任务的样机。为此，探讨了潜空跨介质航行器的研制可能遇到的各类难点问题。 相似文献
1