| 摘要: |
| 本文基于DS－CDMA系统中的线性多用户检测提出了码变换、离散码变换的概念，主要阐述码／时域滤波的基本原理，指出线性多用户检测是一种码／时域滤波，但是有关码变换阵的研究有待深入。 |
| 关键词: 多用户检测 通信系统 码域滤波 DS－CDMA系统 |
| DOI：10.3969/j.issn.1001-893X. |
| Revised:June 20, 2001 |
| 基金项目: |
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| Principle of Filtering in Code-domain |
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| Abstract: |
| Concepts of code transfer and discrete code transfer pair are proposed in this paper. Based on the linear multiuser detection in DS-CDMA systems, the authors describe the principle of filtering in code or time domain. We also point out that linear multiuser detection is a kind of filtering in code/time domain. Research on code-transfer matrix should be studied further. |
| Key words: Signal processing,Multiuser detection,Code transfer matrix,Discrete code transfer pair, |
