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arXiv 2108.01645eess.SP
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使用计算效率高的EK-PHD滤波器的mmWave同时定位和映射

mmWave Simultaneous Localization and Mapping Using a Computationally Efficient EK-PHD Filter

Ossi Kaltiokallio, Yu Ge, Jukka Talvitie, Henk Wymeersch, Mikko Valkama

摘要:

利用毫米波信号的未来蜂窝网络在定位和态势感知方面提供了新的机会。大带宽与大型天线阵列相结合,提供了无与伦比的延迟和角度分辨率,允许高精度定位,但也建立了一个环境地图。即使是用于同时定位和映射的最基本的过滤器也会出现很高的计算开销,因为这些方法依赖于sigma点或基于粒子的近似。在本文中,一阶泰勒级数为基础的高斯近似的滤波分布,它表明,开发的扩展卡尔曼概率假设密度滤波器是计算上非常有效的。此外,结果表明,效率并不与估计精度的代价,因为该方法几乎达到了位置误差界。

英文摘要:

Future cellular networks that utilize millimeter wave signals provide new opportunities in positioning and situational awareness. Large bandwidths combined with large antenna arrays provide unparalleled delay and angle resolution, allowing high accuracy localization but also building up a map of the environment. Even the most basic filter intended for simultaneous localization and mapping exhibits high computational overhead since the methods rely on sigma point or particle-based approximations. In this paper, a first order Taylor series based Gaussian approximation of the filtering distribution is used and it is demonstrated that the developed extended Kalman probability hypothesis density filter is computationally very efficient. In addition, the results imply that efficiency does not come with the expense of estimation accuracy since the method nearly achieves the position error bound.

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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