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Mobile Tracking Using Hybrid Measurements in NLOS Environments

机译:在NLOS环境中使用混合测量进行移动跟踪

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摘要

Non-line of sight (NLOS) error is one of the main error sources of wireless position. In this paper, a mobile tracking method using hybrid measurements is proposed, which can perform well even in NLOS situation. Firstly, Kalman filter (KF) is used to track the mobile station (MS). In KF design, the measurement equations for only location are linearised and unified, and then we combine them to generate measurement equation of hybrid location. Secondly, we add "measurement selecting" and "MS position reckon" to improve the robustness of the tracking method to NLOS error. Analysis and simulation both show that the proposed method performs better than static location method of Taylor series, and it can mitigate the NLOS error effectively in four standard environment types.
机译:非视线(NLOS)错误是无线位置的主要错误来源之一。本文提出了一种使用混合测量的移动跟踪方法,该方法即使在非视距情况下也能表现良好。首先,卡尔曼滤波器(KF)用于跟踪移动台(MS)。在KF设计中,仅对位置的测量方程进行线性化和统一,然后将它们组合以生成混合位置的测量方程。其次,我们添加“测量选择”和“ MS位置估计”以提高跟踪方法对NLOS误差的鲁棒性。分析和仿真均表明,该方法的性能优于泰勒级数的静态定位方法,并且可以有效减轻NLOS误差,适用于四种标准环境类型。

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