UWB的多径波束形成:接收器的信道未知

Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002. Pub Date : 2002-12-01 DOI:10.1109/ACSSC.2002.1197251

Di-xiao Wu, P. Spasojevic, I. Seskar

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引用次数: 10

摘要

我们研究了两种自适应传输方法，它们相干地组合来自超宽带(UWB)信道的前几个反射路径的能量。因此，非自适应相关器输出端的信号能量得到了增强。两种多径波束形成技术均适用于LOS环境下的DSC-UWB系统，建议根据前几个多径系数的符号选择多电平扩展序列。通过采用波束形成方法，增加了多径分量功率的波动，随后增加了m-和单脉冲序列的波束形成增益。

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Multipath beamforming for UWB: channel unknown at the receiver

We study two adaptive transmission approaches that coherently combine the energy from the first several reflected paths of the ultra-wideband (UWB) channel. Thus, the signal energy at the output of a non-adaptive correlator is enhanced. The two multipath beamforming techniques, which are applicable to the DSC-UWB system in a LOS environment, suggest selecting a multilevel spreading sequence based on the signs of the first several multipath coefficients. By employing the beamforming approach, increased fluctuations in the multipath components power, are followed by an increase in the beamforming gain over m-, and single impulse sequences.

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Conference Record of the Thirty-Sixth Asilomar Conference on Signals, Systems and Computers, 2002.

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