| DSSS/CDMA系统窄带干扰抑制技术概述 |
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| 引用本文： | 郭黎利,殷复莲,卢满宏. DSSS/CDMA系统窄带干扰抑制技术概述[J]. 电子学报, 2009, 37(10): 2248-2257 |
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| 作者姓名： | 郭黎利 殷复莲 卢满宏 |
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| 作者单位： | 1. 哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨,150001
2. 北京遥测技术研究所,北京,100076 |
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| 基金项目： | 高等学校博士学科点专项科研基金 |
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| 摘 要： | 窄带干扰(NBI,Narrow-Band Interference)作为一类常见的共道干扰对扩频系统的影响不容忽视,虽然扩频系统本身具备一定的NBI对抗能力,但有效的NBI抑制技术可以显著提高系统性能.在过去的30年中,扩频系统NBI抑制技术的关注重心由单用户直扩(DSSS,Direct Sequence Spread Spectrum)系统扩展到多用户码分多址(CDMA,Code-Division Multiple-Access)系统.文章从预测技术、变换域技术、码辅助技术的角度对DSSS和CDMA系统NBI抑制技术的研究现状、分类比较以及发展趋势进行了全面概述.
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| 关 键 词： | 直扩系统 码分多址系统 窄带干扰抑制 综述 预测技术 变换域技术 码辅助技术 |
| 收稿时间： | 2008-08-27 |
Overview on NBI Suppression of DSSS/CDMA Systems |
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| GUO Li-li,YIN Fu-lian,LU Man-hong. Overview on NBI Suppression of DSSS/CDMA Systems[J]. Acta Electronica Sinica, 2009, 37(10): 2248-2257 |
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| Authors: | GUO Li-li YIN Fu-lian LU Man-hong |
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| Affiliation: | 1. College of Information and Communication Engineering,Harbin Engineering University,Harbin,Heilongjiang 150001,China;2. Beijing Institute of Telemetry.Beijing 100076,China |
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| Abstract: | As a common co-channel interference overlapping on spread spectrum, the effect of Narrow-Band Interference (NBI) could not be neglectable. Although spread spectrum systems could suppress NBI themselves to a certain extent, the effective rejection techniques used for NBI suppression would enhance the performance greatly. Over the past 30 years, the focus of NBI suppression has shifted from the single-user Direct Sequence Spread Spectrum (DSSS) systems to the multi-user Code-Division Multiple-Access (CDMA) systems. From the aspects of prediction, transform domain and Code-Aided techniques, this paper provides tutorial overview of current status,category comparison and development trend on NBI suppression of DSSS and CDMA systems. |
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| Keywords: | DSSS CDMA NBI suppression summarization prediction technique transform domain technique code-aided technique |
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