Narrowband interference suppression in multi-band UWB communication systems

P. Yaddanapudi, D. Popescu
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Abstract

In this paper we present a new method for mitigating narrowband interference in multiband OFDM (MB-OFDM) ultra wideband (UWB) systems. The method employs spectral shaping of the transmitted signal using binary signature sequences with minimum total squared correlation (TSC) to avoid the narrowband interfering signal. We illustrate the proposed method with plots that show the spectrum of the transmitted signal with and without spectral shaping, and present also simulation results that show improvement in the bit error rate (BER) performance of the system when the method is applied.
多波段超宽带通信系统中的窄带干扰抑制
本文提出了一种在多频带OFDM (MB-OFDM)超宽带(UWB)系统中减小窄带干扰的新方法。该方法利用最小总平方相关(TSC)的二进制特征序列对传输信号进行频谱整形,以避免窄带干扰信号。我们用频谱整形和不进行频谱整形的传输信号频谱图来说明所提出的方法,并给出了仿真结果,表明应用该方法后系统的误码率(BER)性能得到了改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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