超宽带无线定位系统及算法研究

超宽带技术具有抗干扰效果好、安全性高、能提供精确定位等优点,成为无线定位的首选技术。主要从传统的若干定位技术入手,结合各种定位技术的优缺点,提出一种结合波达时间差(TDOA)、波达时间和(TSOA)方法的超宽带无线混合定位算法,该算法需要参考节点少,定位精度高,适用范围广。实验结果表明,定位系统适合隧道定位,TDOA/TSOA混合定位算法的测量距离为200 m,定位精度误差在40 cm以内。

System Design and Algorithm Research of UWB Wireless Location

Because the ultra-wide band technology possesses many advantages, such as the good anti-interference effect, high security, and the precise positioning, the ultra-wide technology becomes the primary choice in the wireless positioning technology. Positioning system small size, low power consumption, convenient installation, Algorithm mainly started with the traditional positioning technology, combined with the advantages and disadvantages of various positioning technology, proposes an ultra-wide band wireless hybrid positioning algorithm which is the combination of the TDOA and the TSOA. This algorithm can use few reference nodes, have a high positioning precision and applied in a wide range. The results show that, the hybrid location algorithm of TDOA/TSOA measured the distance at 200 m, the error of the location accuracy is within 40 cm.