【摘要】 提出了一种新的超宽带脉冲的设计方法。采用不同幅度和延迟的高斯脉冲的组合来拟合抽样函数脉冲,实现了超宽带辐射掩蔽的高效逼近。该方法产生的脉冲波形具有实现简单、持续时间短、容易进行时域或频域调节等特点。在介绍设计原理的基础上,给出了设计时域波形的具体实现及波形所对应的功率谱密度图,使其满足辐射掩蔽的要求。最后,分析了TH-PPMUWB系统的传输性能,并和最佳单周期高斯波形进行了详细的比较,结果表明其误码性能远远优于最佳单周期高斯波形。更多还原

【Abstract】 Using the combination of Gaussian monocycles pulse with different amplitude and different delay,a new ultra-wideband(UWB) pulse design method for Inband(either narrowband or wideband) Interference suppression is presented.With a short duration and a simple implement,the obtained UWB pulse can meet Federal Communications Commission(FCC) spectral mask.The theory of the method is explained firstly,then through the examples and simulations,the detail pulse shape and its power spectral density(PSD) are given that satisfy the FCC mask.In the end,the communication performance of the UWB pulse is analyzed in the paper.Comparing with optimal Gaussian-based monocycle,the pulse has an obvious advantage over the optimal Gaussian-based monocycle on Bits Error Rate.更多还原