基于超宽带和惯性神经网络的鲁棒室内车辆定位策略

IF 7.1 2区 计算机科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Long Cheng;Chen Cui;Hao Zhang
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引用次数: 0

摘要

高精度室内车辆定位技术是近年来室内定位服务的研究热点。为了克服超宽带在非瞄准线环境下的局限性和惯性导航系统的累积误差,研究了基于超宽带和惯性导航系统的室内组合定位技术。为了方便地处理NLOS误差,提出了一种两层的NLOS误差弱化方法。首先,采用k-mediods聚类方法对得到的距离测量值进行预处理,将部分包含NLOS误差的测量值替换为未受NLOS传输干扰的测量值;处理后的结果再用灰色卡尔曼滤波进行处理,降低了处理噪声和NLOS误差。提出了一种混合高斯拟合方法来确定传播条件,并通过残差计算滤波距离与测量距离的差值来模拟传播的可能性。双面校正技术改变了拟合方法和改进粒子滤波方法的结果。然后利用自适应卡尔曼滤波对惯导定位结果和超宽带定位结果进行组合,得到最终定位数据。仿真和实验结果表明,该算法具有较高的定位精度和可靠性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Robust Indoor Vehicle Localization Strategy Based on UWB and INS
High-precision indoor vehicle localization technology has recently been a research hotspot for indoor location services. This paper investigate the indoor combined positioning technology based on Ultra wide band (UWB) and inertial navigation system(INS), aiming to overcome the limitations of UWB in non-line of sight (NLOS) environment and cumulative errors of INS. For dealing with NLOS errors conveniently, we propose a two-layer NLOS error weakening method. Firstly, k-mediods clustering method is used to preprocess the obtained distance measurements, and some of the measurements containing NLOS errors are replaced with the measurements undisturbed by NLOS transmission. The processed result is processed again with gray Kalman filter, which reduces the process noise and NLOS error. A hybrid Gaussian fitting approach is suggested to determine the propagation conditions and simulate the likelihood of propagation through the residual after calculating the difference between the distance that was filtered and the distance that was measured. The two-sided correction technique changed the findings of the fitting method and the improved particle filtering method. The adaptive Kalman filter was then used to combine the INS and UWB location results to get the final location data. Simulation and experimental results show that the proposed algorithm owns higher localization accuracy and dependability.
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来源期刊
CiteScore
6.00
自引率
8.80%
发文量
1245
审稿时长
6.3 months
期刊介绍: The scope of the Transactions is threefold (which was approved by the IEEE Periodicals Committee in 1967) and is published on the journal website as follows: Communications: The use of mobile radio on land, sea, and air, including cellular radio, two-way radio, and one-way radio, with applications to dispatch and control vehicles, mobile radiotelephone, radio paging, and status monitoring and reporting. Related areas include spectrum usage, component radio equipment such as cavities and antennas, compute control for radio systems, digital modulation and transmission techniques, mobile radio circuit design, radio propagation for vehicular communications, effects of ignition noise and radio frequency interference, and consideration of the vehicle as part of the radio operating environment. Transportation Systems: The use of electronic technology for the control of ground transportation systems including, but not limited to, traffic aid systems; traffic control systems; automatic vehicle identification, location, and monitoring systems; automated transport systems, with single and multiple vehicle control; and moving walkways or people-movers. Vehicular Electronics: The use of electronic or electrical components and systems for control, propulsion, or auxiliary functions, including but not limited to, electronic controls for engineer, drive train, convenience, safety, and other vehicle systems; sensors, actuators, and microprocessors for onboard use; electronic fuel control systems; vehicle electrical components and systems collision avoidance systems; electromagnetic compatibility in the vehicle environment; and electric vehicles and controls.
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