| DS/FH中窄带干扰的变换域处理方法研究 |
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| 引用本文： | 王世练,邬书跃,路军,张尔扬.DS/FH中窄带干扰的变换域处理方法研究[J].国防科技大学学报,2001,23(4):98-101. |
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| 作者姓名： | 王世练 邬书跃 路军 张尔扬 |
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| 作者单位： | 国防科技大学电子科学与工程学院, |
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| 基金项目： | 国防科技重点实验室项目资助 ( 2 0 0 0JS6 3 3 1 KG0 111) |
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| 摘 要： | 分别给出了DS/FH混合扩频系统中窄带干扰的两种变换域处理方法。具体分析了基于频域FFT和时频域M_PWD分析的被干扰谱线检测与抑制算法 ,为避免谱泄漏 ,在变换处理之前加窗处理。给出了不同处理算法情况下系统误码率的数字仿真结果
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| 关 键 词： | DS/FH 窄带干扰 FFT 修正伪Wigner变换 |
| 文章编号： | 1001-2486(2001)04-0098-04 |
| 收稿时间： | 2001/1/11 0:00:00 |
| 修稿时间： | 2001年1月11日 |
Research on Transform Domain Narrowband Interference Suppression Method in Hybrid DS/HF System |
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| WANG Shilian,WU Shuyue,LU Jun and ZHANG Eryang.Research on Transform Domain Narrowband Interference Suppression Method in Hybrid DS/HF System[J].Journal of National University of Defense Technology,2001,23(4):98-101. |
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| Authors: | WANG Shilian WU Shuyue LU Jun and ZHANG Eryang |
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| Affiliation: | College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China;College of Electronic Science and Engineering, National Univ. of Defense Technology, Changsha 410073, China |
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| Abstract: | This paper presents two transform domain approaches to suppress the narrowband interference in a hybrid direct sequence frequency hopping spread spectrum system. Different algorithms used in determining and suppressing the interfered frequency bins are studied in detail,based on FFT frequency domain and MPWD time frequency domain respectively. To avoid spectral leaking of the power, windowing can be performed prior to transformation. The simulated numerical results of the system bit error probability under different adaptive algorithms are provided. |
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| Keywords: | DS/FH narrowband interference FFT modifed _pseudo wigner distribution |
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