| 摘要: |
| 利用阵列天线系统接收信号的自相关矩阵的最大特征值所对应的本征向量的信号处理(PSM)思想，提出一种适用于TD—SCDMA系统的快速下行波束形成技术。此方法利用各个用户的扩频码进行目标用户的数据分离，并用迭代的方法代替用户信号的自相关矩阵的特征分解，降低了计算复杂度。计算机仿真验证了该方法的有效性。 |
| 关键词: TD—SCDMA 智能天线 最大特征值 波束形成 算法 |
| DOI：10.3969/j.issn.1001-893X. |
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| 基金项目:国家863计划项目(2002AA123011-1) |
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| A Fast Downlink Beamforming Algorithm in TD-SCDMA System |
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| () |
| Abstract: |
| This paper introduces a fast downlink beamforming algorithm on the basis of received signal in TD-SCDMA mobile system. It uses iterative method instead of Eigenvalue Decomposition after dispreading. The important innovation for this algorithm is that the fast algorithm can be applied to variable spread factor and the complexity of calculation is reduced. Computer simulation result verifies the usefulness of this algorithm. |
| Key words: TD-SCDMA,Smart antenna,Matrix eigenvalue,Beamforming,Algorithm |
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