室内精确定位算法研究
发布时间：2019-06-08 14:51
【摘要】：随着3G时代的到来和无线网络的发展,基于位置的增值业务因其蕴藏的巨大的商业潜力而倍受关注。因此,基于网络的无线定位技术成为通信领域内最为活跃和发展最为迅速的领域之一。本论文主要研究的就是基于网络的无线定位技术。 由于室内环境复杂性的影响,手持设备和各接收机的距离估计可能存在严重的误差。本课题将在分析和总结现有定位算法种类和性质的基础上,针对复杂的室内环境和给定无线局域网的热点配置模型的情况下,针对原MUSIC算法的缺点提出了一种改进MUSIC算法估计信号的波达方向进行室内定位,并对其原理和算法在多径效应、相干信源和噪声干扰下的鲁棒性等方面的问题作了详细的分析。实现对网路中的运动目标进行跟踪,并减小测量得到的距离估计误差并通过仿真验证所提算法的有效性。
[Abstract]:With the advent of 3G era and the development of wireless network, location-based value-added services have attracted much attention because of their great commercial potential. Therefore, network-based wireless positioning technology has become one of the most active and rapidly developing fields in the field of communication. This paper mainly studies the wireless location technology based on network. Due to the complexity of indoor environment, there may be serious errors in the distance estimation between handheld equipment and each receiver. Based on the analysis and summary of the types and properties of the existing localization algorithms, this paper will aim at the complex indoor environment and given the hot spot configuration model of the wireless local area network (WLAN). In view of the shortcomings of the original MUSIC algorithm, an improved MUSIC algorithm is proposed to estimate the direction of arrival of the signal for indoor localization, and the principle and robustness of the algorithm under multi-path effect, coherent source and noise interference are analyzed in detail. The tracking of moving targets in the network is realized, and the measured distance estimation error is reduced, and the effectiveness of the proposed algorithm is verified by simulation.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92
本文编号：2495372
[Abstract]:With the advent of 3G era and the development of wireless network, location-based value-added services have attracted much attention because of their great commercial potential. Therefore, network-based wireless positioning technology has become one of the most active and rapidly developing fields in the field of communication. This paper mainly studies the wireless location technology based on network. Due to the complexity of indoor environment, there may be serious errors in the distance estimation between handheld equipment and each receiver. Based on the analysis and summary of the types and properties of the existing localization algorithms, this paper will aim at the complex indoor environment and given the hot spot configuration model of the wireless local area network (WLAN). In view of the shortcomings of the original MUSIC algorithm, an improved MUSIC algorithm is proposed to estimate the direction of arrival of the signal for indoor localization, and the principle and robustness of the algorithm under multi-path effect, coherent source and noise interference are analyzed in detail. The tracking of moving targets in the network is realized, and the measured distance estimation error is reduced, and the effectiveness of the proposed algorithm is verified by simulation.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN92
【共引文献】
相关硕士学位论文 前2条
1 林文凤;阵列快速DOA估计算法研究[D];电子科技大学;2013年
2 马永阳;基于子空间分析的DOA估计算法研究[D];浙江工业大学;2013年
，本文编号：2495372
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