| 摘要: |
| 本文研究了考虑伪码跟踪误差影响的码片内多径分离技术。首先简要叙述了多径抵消技术的发展 ,然后基于多径监视思想给出了一种开环补偿多径抵消方法 ,随后详细分析了伪码跟踪误差对码片内多径分离结果的影响。仿真结果表明 ,采用这种开环补偿方法后 ,码片内多径分离结果得到不同程度的改善 ,提高了多径参数的估计精度 |
| 关键词: 移动通信,扩频通信,多径抵消,GPS,无线定位 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:July 04, 2002 |
| 基金项目:国家自然科学基金资助项目 (6 9972 0 18) |
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| Separation of Sub-chip Multipath Components in Presence of Tracking Errors |
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| Abstract: |
| In this paper, we combine the separation of sub-chip multipath components with a method of open-loop measurement for improving the accuracy of the separation. The expression of open-loop measurement compensation is deduced based on the thought of multipath indicator (MPI). And the influence of tracking errors on the separation of sub-chip multipath components under spread spectrum communication model is analyzed in detail. Finally, a simulation is carried out. The results demonstrate that the accuracy of the separation is improved after adopting the method. |
| Key words: Mobile communication,Spread spectrum communication,Multipath mitigation,GPS,Wireless location |
