| 郑恩明,陈新华,孙长瑜,余华兵.一种四元超短基线阵实现高精度定位[J].,2013,32(1):15-22 |
| 一种四元超短基线阵实现高精度定位 |
| An innovation four-element array to achieve high-precision positioning of the Ultra-short baseline |
| 投稿时间：2012-03-20 |
| 中文摘要: |
| 由于超短基线自身尺寸较小，随着作用距离增加，其定位误差增大。对此，本文在阵元数较小的情况下，通过优化阵型形成间距不等的四元阵来提高系统定位精度。该阵型既减少了已有八元阵的冗余阵元，也不需要发射端发送跳频信号。本文给出了新阵型的相位补偿公式以及所适用频带的理论分析。理论分析和数值仿真表明：本文所述新阵型与已有的八元阵定位精度相当。可为改善超短基线定位精度提供一些参考。 |
| 英文摘要: |
| Because the aperture of Ultra-short baseline (USBL) is small, its position error becomes awful with the increment of range. This paper discusses an improved positioning precision method for USBL by applying a new four-element array when the number is small. The new array reduces the redundancy elements of the eight-element array, and it also does not need to send frequency hopper signals from the transmitter. The paper analyses the phase compensation formula and the suitable frequency range for the new four-element array. The theoretical analyses and numerical simulation results show that the new array has the same positioning precision with the eight-element array. This method could improve the USBL. |
| DOI：10.11684/j.issn.1000-310X.2013.01.003 |
| 中文关键词: 超短基线，四元阵，定位精度 |
| 英文关键词: Ultra-short baseline, The four-element array, Positioning precision |
| 基金项目: |
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