| 基于变换域通信的OFDM系统窄带干扰抑制方法 |
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| 引用本文： | 郭黎利,袁波.基于变换域通信的OFDM系统窄带干扰抑制方法[J].电子科技,2010,23(8):70-72. |
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| 作者姓名： | 郭黎利 袁波 |
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| 作者单位： | (哈尔滨工程大学 信息与通信工程学院,黑龙江 哈尔滨 150001) |
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| 基金项目： | 教育部高等学校博士学科点专项科研基金资助项目 |
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| 摘 要： | 为解决宽带OFDM系统易受传统窄带信号干扰的问题,采用基于变换域通信(TDC)的OFDM系统,通过在变换域中的电磁环境采样结果,对OFDM信号进行设计,避免使用受干扰频谱传送信息。该方法在强窄带干扰得到抑制的同时,信噪比也不容易受到变换域滤波的影响。在加性高斯白噪声信道中的仿真结果表明,基于TDC的干扰抑制方法能够有效地抑制宽带OFDM系统的窄带干扰。
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| 关 键 词： | OFDM 变换域 变换域通信 窄带干扰抑制 |
Narrow-Band Interference Rejection Method Based on the Transform Domain Communication Technique for the OFDM System |
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| Guo Lili,Yuan Bo.Narrow-Band Interference Rejection Method Based on the Transform Domain Communication Technique for the OFDM System[J].Electronic Science and Technology,2010,23(8):70-72. |
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| Authors: | Guo Lili Yuan Bo |
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| Affiliation: | (College of Information and Communication Engineering,Harbin Engineering University,Harbin 150001,China) |
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| Abstract: | In order to solve the problem of interference by narrow-band signals in the wideband OFDM system,a method based on the TDC technique is proposed for NBI rejection in the OFDM system.The optimal OFDM signals based on the estimated spectrum is designed to suppress the NBI in the TD.This method not only effectively reduces the impact caused by strong NBI,but also enables the SNR to be less susceptible to the effects of transform domain filtering.The simulation results in the AWGN channel show that this method ... |
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| Keywords: | OFDM |
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