脉冲电台UWB TH-PPM的精细同步
Fine Synchronization through UWB TH-PPM Impulse Radios
摘要：
本文提出了一种新的基于脉冲位置调制（PPM）的超宽带（UWB）信号同步算法。通过应用该算法，我们评估定时算法在数据辅助（DA）和非数据辅助（NDA）模式。基于相关操作，我们的算法仍然可以在实际的UWB设置。所提出的定时方案包括两个互补的楼层或步骤。第一层包括一个粗略的同步，这是建立在最近提出的收购计划的基础上的脏模板（TDT）。在第二层，我们研究了一种新的精细同步算法，它给出了一个改进的定时偏移估计。仿真结果证实了我们的定时同步的性能改善相比，原来的TDT算法的均方误差。
英文摘要：
In this paper, a novel fine timing algorithm has been tested and developed to synchronize Ultra-Wideband (UWB) signals with pulse position modulation (PPM). By applying this algorithm, we evaluate timing algorithms in both data-aided (DA) and non-data-aided (NDA) modes. Based on correlation operations, our algorithm remains operational in practical UWB settings. The proposed timing scheme consists of two complementary floors or steps. The first floor consists on a coarse synchronization which is founded on the recently proposed acquisition scheme based on dirty templates (TDT). In the second floor, we investigate a new fine synchronization algorithm which gives an improved estimate of timing offset. Simulations confirm performance improvement of our timing synchronization compared to the original TDT algorithm in terms of mean square error.
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