| 利用基于滤波器组的重叠变换抑制扩频通信系统中的时变干扰 |
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| 引用本文： | 李冲泥,胡光锐. 利用基于滤波器组的重叠变换抑制扩频通信系统中的时变干扰[J]. 通信学报, 2001, 22(4): 26-29 |
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| 作者姓名： | 李冲泥 胡光锐 |
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| 作者单位： | 上海交通大学电子工程系, |
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| 摘 要： | 本文提出了基于滤波器的重叠变换方法，并对滤波器组结构进行了一些改进，使之在提供频率信息的同时保留了信号的时域信息，因此物品处理时变干扰，仿真结果证明，采用基于滤波器的重叠变换并结合本文所介绍的阈值处理算法可以有效地抑制扩频通信系统中的时变干扰。
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| 关 键 词： | 变换域处理 重叠变换 扩频通信系统 时变干扰 滤波器组 |
| 文章编号： | 1000-436X(2001)04-0026-04 |
| 修稿时间： | 1999-01-12 |
Non-stationary interference excision in spread spectrum systems using the filter-bank based lapped transform |
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| LI Chong-ni,HU Guang-rui. Non-stationary interference excision in spread spectrum systems using the filter-bank based lapped transform[J]. Journal on Communications, 2001, 22(4): 26-29 |
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| Authors: | LI Chong-ni HU Guang-rui |
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| Abstract: | Among many transform domain processing techniques,Lapped transform domain excision is an efficient way for interference suppressing Because the lapped transform can not provide the information both in time domain and frequency domain,it is not suit for non stationary interference excision In this paper,the idea of using filter bank is modified in order to retain the time domain information of input signal With the help of the threshold method introduced in this paper,the filter bank based lapped transform can be efficient in suppressing non stationary interference Preliminary simulation results show the validity of our method |
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| Keywords: | transform-domain processing lapped transform spread-spectrum communication |
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