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公开(公告)号:US07324604B2
公开(公告)日:2008-01-29
申请号:US10602743
申请日:2003-06-24
申请人: Andreas Molisch , Yunnan Wu , Sun Y. Kung
发明人: Andreas Molisch , Yunnan Wu , Sun Y. Kung
IPC分类号: H04K1/02
CPC分类号: H04B1/7172
摘要: A method and system shapes a spectrum of an impulse radio signal, such as an UWB signal. First, basis pulses at various frequencies and pseudo-random delays are generated. The generated set of basis pulses are then weighted and delayed, and combined linearly to conform the spectrum of the transmitted basis pulses to a spectral mask. The spectral mask can be predetermined, or the conforming can be adaptive. Furthermore, the basis pulses can be frequency-shifted before the combining.
摘要翻译: 一种方法和系统对诸如UWB信号的脉冲无线电信号的频谱进行整形。 首先,生成各种频率的基本脉冲和伪随机延迟。 所生成的基准脉冲集合然后被加权和延迟,并且线性地组合以使所发送的基本脉冲的频谱符合频谱掩模。 光谱掩模可以是预定的,或者符合可以是自适应的。 此外,基准脉冲可以在组合之前进行频移。