改进的Active Bat室内超声波定位方法

发布时间：2018-09-08 17:03

【摘要】：针对Active Bat室内超声波位方法中定位精度受环境温度、硬件延时误差、时间同步误差等的影响,提出了改进的Active Bat室内超声波定位方法。该方法在Active Bat室内超声波定位系统结构基础上设立一个参考节点,通过参考节点定位坐标与实际位置坐标获取位置误差修正数,修正定位终端定位误差,以提高定位精度。室内环境下进行实验数据采集、解算、对比分析,实验验证表明,常规的Active Bat室内超声波定位定位平均误差为6.93cm;该方法定位平均误差为1.86cm。该方法可以有效提高室内定位精度,定位精度提高了接近73.16%。
[Abstract]:In view of the influence of environment temperature, hardware delay error and time synchronization error on the positioning accuracy of Active Bat indoor ultrasonic positioning method, an improved Active Bat indoor ultrasonic positioning method is proposed. Based on the structure of Active Bat indoor ultrasonic positioning system, a reference node is set up. The position error correction number is obtained from the reference node positioning coordinate and the actual position coordinate, and the positioning error of the positioning terminal is corrected to improve the positioning accuracy. The experimental data are collected, calculated and compared in indoor environment. The experimental results show that the average error of conventional Active Bat indoor ultrasonic positioning is 6.93 cm, and the average error of this method is 1.86 cm. This method can effectively improve the accuracy of indoor positioning, and improve the accuracy of positioning by 73.16.
【作者单位】：南昌大学信息工程学院;南昌大学空间科学与技术研究院;
【基金】：国家自然科学基金项目资助(41504026);国家自然科学基金项目资助(41374039)
【分类号】：TB559

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