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arXiv 2005.10298eess.SPcs.NI
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传感器网络TDOA自校准:二维复杂度分析及解决方案

Sensor Networks TDOA Self-Calibration: 2D Complexity Analysis and Solutions

Luca Ferranti, Kalle Åström, Magnus Oskarsson, Jani Boutellier, Juho Kannala

摘要:

给定接收机和发射机的网络,从测量的伪距确定它们的位置的过程被称为网络自校准。在本文中,我们考虑2D网络同步接收器,但不同步发射器和相应的校准技术,称为到达时间差(TDOA)技术。尽管以前的工作,TDOA自校准是计算上的挑战。迭代算法对初始化非常敏感,导致收敛问题。在本文中,我们提出了一种新的方法,它给出了一个代数解决方案,以前未解决的情况。我们还证明,我们的求解器产生一个很好的初始值的非线性优化算法,导致一个完整的管道鲁棒噪声。

英文摘要:

Given a network of receivers and transmitters, the process of determining their positions from measured pseudoranges is known as network self-calibration. In this paper we consider 2D networks with synchronized receivers but unsynchronized transmitters and the corresponding calibration techniques, known as Time-Difference-Of-Arrival (TDOA) techniques. Despite previous work, TDOA self-calibration is computationally challenging. Iterative algorithms are very sensitive to the initialization, causing convergence issues. In this paper, we present a novel approach, which gives an algebraic solution to two previously unsolved scenarios. We also demonstrate that our solvers produce an excellent initial value for non-linear optimisation algorithms, leading to a full pipeline robust to noise.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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