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引用次数: 4
摘要
本文介绍了一种利用超宽带技术进行三维人体定位的研究。使用立方体和Y形基站配置、到达时间和第一峰值检测算法来估计放置在身体表面附近的传感器的位置。同时利用球坐标系确定目标的方向。比较了TOA法和TDOA法在已知坐标估计精度方面的差异。结果表明，由于人体的存在会造成干扰，传感器位置估计的准确性取决于其放置在人体上的位置。总体平均精度在3D定位中，TOA方法为2.5 ~ 4.5 cm, TDOA方法为3.5 ~ 4.5 cm。
Localisation of body-worn sensors applying Ultra Wideband technology
This paper presents a study of 3D human body localisation using Ultra Wideband technology. Cube and Y shape base station configurations, time of arrival and first peak detection algorithms are used to estimate the position of the sensors that are placed near the surface of the body. Also spherical coordinate system is used to find the direction of the target. A comparative study is done between the TOA and TDOA method in terms of accuracy obtained in estimation of known coordinates. Results show that accuracy in estimation of location of the sensor depends on position it is placed on the human body as the presence of body would cause interference. The overall average accuracy in 3D localisation is around 2.5 to 4.5 cm for TOA method and 3.5 to 4.5 cm for TDOA method.
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