一种新的UWB通信脉冲设计  

Novel UWB communication pulse design method

作　　者：林志远[1] 魏平[1] 

机构地区：[1]电子科技大学电子工程学院,四川成都610054

出　　处：《通信学报》2006年第7期122-126,134,共6页Journal on Communications

摘　　要：研究了基于FCC辐射遮蔽约束的超宽带无线通信系统超短脉冲波形设计方法。以具有不同形状因子和频谱搬移因子的高斯二阶微分脉冲为基函数,提出迭代组合和LMMSE(线性最小均方误差)组合的UWB(超宽带)脉冲设计方法。对采用迭代组合脉冲或高斯二阶微分脉冲的系统在高斯信道下的单链路误比特率、多址、多径等性能进行了仿真比较,验证了所提出的组合脉冲设计方法。Based on the restriction of federal communications commission （FCC） emission mask, the methods of designing impulse pulse waveforms for ultra wideband （UWB） communications was investigated. The second derivative Gaussian pulse with the diverse shaping factors and the diverse spectral moving factors acted as basis functions. The iterative combination pulse method and the linear minimum mean square error （LMMSE） combination pulse method were presented. The comparison were presented for the bit error rate （BER） performance analyses of the pulse position modulation time hopping ultra wideband （PPM TH UWB） impulse radio （IR） communication system employing the iterative combination pulse or the second derivative Gaussian pulse in the additive white Gaussian noise （AWGN） channel, multiple user interference （MUI） and multiple path channel. Several numerical experiments demonstrate the efficiency of this method.

关 键 词：超宽带通信 FCC辐射遮蔽 脉冲组合 误比特率 

分 类 号：TN929.5[电子电信—通信与信息系统]