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SPEAR: Source Position Estimation for Anchor Position Uncertainty Reduction

机译:SPEAR:减少锚位置不确定性的源位置估计

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This letter introduces an RSS-based framework (termed Source Position Estimation for Anchor position uncertainty Reduction - SPEAR) for joint estimation of the positions of a wireless transmitter source and the corresponding measuring anchors. The framework exploits the imprecise anchor position information using non-Bayesian estimation and employs a novel Joint Maximum Likelihood (JML) algorithm for reliable anchor and agent position estimations. It proposes to use the iterative Trust Region (TR) strategy as a solution to the JML nonlinear minimization problem. Simulation results show that the JML results in source localization improvements (compared to the ML that ignores the anchor position uncertainty) and provides a more reliable anchors?? positions estimates.
机译:这封信介绍了一种基于RSS的框架(用于减少锚位置不确定性的源位置估计-SPEAR),用于联合估计无线发射机源和相应的测量锚的位置。该框架使用非贝叶斯估计来利用不精确的锚位置信息,并采用新颖的联合最大似然(JML)算法进行可靠的锚和代理位置估计。它建议使用迭代信任区(TR)策略作为JML非线性最小化问题的解决方案。仿真结果表明,JML改进了源定位(与忽略锚位置不确定性的ML相比)并提供了更可靠的锚?职位估计。

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