移动节点网络的联合非线性测距与仿射同步基础
应用统计
2014-01-24 v1
摘要
同步与定位是移动节点无线网络协调运作的关键挑战。本文基于双向时间戳交换,提出了一种新颖的联合非线性距离与仿射时间模型,扩展了现有的仿射时间-距离模型。对于一对节点,提出了一种闭式成对最小二乘解,用于估计成对距离参数,即节点间的相对距离、距离变化率和距离变化率的变化率,此外还估计时钟偏斜和时钟偏移。将这些成对解扩展到网络范围的测距与时钟同步,我们提出了一种基于中央数据融合的全局最小二乘解。此外,为联合时间-距离模型推导了一个新的约束克拉美罗界(CCRB),并证明所提出的算法接近理论极限。
引用
@article{arxiv.1401.5931,
title = {Joint non-linear ranging and affine synchronization basis for a network of mobile nodes},
author = {Raj Thilak Rajan and Alle-Jan van der Veen},
journal= {arXiv preprint arXiv:1401.5931},
year = {2014}
}
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