论文标题
用于定位无线电标签的伪多普勒方向找到系统的实验评估
Experimental Evaluation of a Pseudo-Doppler Direction-Finding System for Localizing Radio Tags
论文作者
论文摘要
我们介绍了无线电天线系统的设计，用于对无线电发射极进行瞬时轴承测量。我们的工作是由用于本地化和跟踪无线电标签野生动植物的应用程序的动机。传统方法是使用需要旋转的定向天线，以便找到耗时的轴承。取而代之的是，我们提出了一个低成本系统，能够使用天线阵列几乎可以立即查找轴承测量。对于使用无人机系统（UASS）进行野生动植物跟踪，这一点尤其有吸引力，除了缓慢，剩余的固定性可能还具有挑战性和消耗能量。拟议的系统使用现有的开源硬件和软件系统，并利用伪多普勒方向找到的原理。在态室和室外设置中测试了所得系统。用粒子过滤的室外测试表明，所得系统能够以200m x 200m的初始估计开始，在5米精度之内定位无线电标签。
We present the design of a radio antenna system for obtaining instantaneous bearing measurements towards a radio emitter. Our work is motivated by applications where robots are used for localizing and tracking radio-tagged wildlife. The traditional method is to use directional antennas that need to be rotated in order find the bearing which is time consuming. Instead, we present a low-cost system capable of finding bearing measurements almost instantaneously using an antenna array. This is particularly appealing for wildlife tracking with Unmanned Aerial Systems (UASs) where remaining stationary can be challenging and energy consuming, in addition to being slow. The proposed system uses existing open source hardware and software systems and leverages principles of pseudo Doppler direction-finding. The resulting system was tested in an anechoic chamber and in outdoor settings. The outdoor tests with particle filtering show that the resulting system is capable of localizing radio tags within 5 meter accuracy starting with an initial estimate of 200m x 200m.
