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| 论文题目 |
一种水下GPS系统及其在蛙人定位导航中的应用 |
| 论文题目（英文） |
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| 作者 |
李敏 |
| 发表年度 |
2008 |
| 卷 |
27 |
| 期 |
6 |
| 页码 |
813 |
| 期刊名称 |
声学技术 |
| 摘要 |
研究了一种适用于蛙人导航的水下GPS系统。针对蛙人执行水下任务所需的声纳浮标作为定位基站的GPS定位系统，介绍了该系统基于延时测量的定位原理和器和扩展Kalman滤波器的设计，并通过数值仿真进行了验证，结果表明：为提高行滤波平滑是必要的。 |
| 摘要_英文 |
In order to supply the navigation service with mgh accurr for the diver in underwater actions，a scheme of underwaterGPS system which takes the active sonobuoy a．q a communication beacon， is propose1e principle of target positioning is based 012 the measurements of sound propagation delay between the target and beacons，and the algorithm for solving the nonlinear equations of target’8 position is also introduce4’nlereafter．the Kalman filter and the extended Kalman filter are designed for improving the acCUrSL'y of position estimation．and their performance is demonstrated via numerical simulation results
show that it is necessary to integrate the smoothing techniques such as the Kalman filteringinto the positioning solver to improve the navigation accuracy． |
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