DS-UWB系统中NBI抑制的扩频序列选择方案

2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals Pub Date : 2010-10-25 DOI:10.1109/UWBUSIS.2010.5609145

C. Wang, R. Ying, Y. Wei, Y. Yang

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引用次数: 0

摘要

干扰抑制对于超宽带(UWB)系统在已有窄带系统占用的频谱上运行非常重要。针对直接序列超宽带(DS-UWB)系统中编码辅助干扰抑制问题，提出了一种扩频序列选择方案。与随机选择的扩频序列相比，该方案能保证系统达到次优性能。与我们最近提出的特征向量符号(EVS)扩展序列相比，选择的扩展序列可以避免高速应用中的均衡器，降低了系统实现的复杂性。

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Spreading sequence selection scheme for NBI suppression IN DS-UWB systems

Interference suppression is important for the ultra-wideband (UWB) systems to operate over spectrum occupied by pre-existing narrowband systems. In this paper, a spreading sequence selection scheme is proposed for code-aided interference suppression in direct-sequence UWB (DS-UWB) systems. Compared with a randomly selected spreading sequence, the presented scheme can ensure the system achieves suboptimal performance. Compared with our recently proposed eigenvector sign (EVS) spreading sequence, an equalizer can be avoided for high speed application by using the selected spreading sequence, which reduces the complexity of system implementation.

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2010 5th International Confernce on Ultrawideband and Ultrashort Impulse Signals

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