Design of jitter-robust orthogonal pulses for UWB systems
Design of jitter-robust orthogonal pulses for UWB systems
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DOI：
10.1109/glocom.2003.1258336
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发表时间：
2003-12
期刊：
影响因子：
--
通讯作者：
G. Abreu;R. Kohno
中科院分区：
文献类型：
--
作者：
G. Abreu;R. Kohno
提出了一类用于脉冲形状调制 (PSM) 超宽带 (UWB) 通信的 Hermite 脉冲的设计。所提出的脉冲具有鲁棒性，可以抵抗接收波形与其匹配模板之间的抖动或同步小缺陷。给出了所提出的和传统的埃尔米特脉冲的自相关函数和互相关函数的紧密形式表达式，其用于将抖动通道建模为简单的失真矩阵。然后通过同时对角化不同抖动值的这种信道矩阵实现的选定样本的子集来获得抗抖动正交脉冲组。给出了用该方法导出的波形示例和仿真结果，显示了所提出的脉冲在对抗 PSM-UWB 系统抖动方面的有效性。
The design of a class of Hermite pulses for pulse shape modulated (PSM) ultra-wideband (UWB) communications is presented. The proposed pulses offer robustness against jitter or small imperfections in synchronization between received waveforms and their matched templates. Close form expressions of the auto- and cross-correlation functions of the proposed and conventional Hermite pulses are given, which are used to model the jitter channel as a simple distortive matrix. The set of jitter-robust orthogonal pulses is then obtained by simultaneously diagonalizing a subset of selected samples of such channel matrix realizations for different jitter values. Examples of waveforms derived with the method and simulation results showing the effectiveness of the proposed pulses in combatting jitter in PSM-UWB systems are given.