论文标题
关于使用GNS自动检测衰减环境
On the use of GNSS for Automatic Detection of Attenuating Environments
论文作者
论文摘要
当不同的无线电应用共享相同的频谱时，通过衰减材料的分离是减轻潜在干扰的一种方法。 5150-5350 MHz中WLAN设备对WLAN设备的室内限制是监管措施的一个例子，旨在使WLAN设备在提供足够的衰减环境中运行以与其他服务共享。在本文中，我们调查是否可以在没有用户互动的情况下自动检测到衰减环境。我们没有发现室内位置，而是直接寻找对衰减环境的检测。基本思想是，来自全球导航卫星服务（GNSS）的信号几乎可以接收到地球上到处都有景色的任何地方。在减弱这些信号的地方，假定接收装置处于衰减环境中。为了表征这种环境，我们评估可检测到的GNSS卫星及其载体到噪声密度。示例测量结果表明，GNSS原始数据可以帮助区分低衰减的位置和更高的位置。这些测量是在现成的Android片剂中使用GNSS接收器进行的，以显示方法的可行性。
When different radio applications share the same spectrum, the separation by attenuating material is a way to mitigate potential interference. The indoor restriction for WLAN devices in 5150-5350 MHz is an example for a regulatory measure that aims at having WLAN devices operating in an environment that provides sufficient attenuation to enable sharing with other services. In this paper we investigate whether an attenuating environment can be automatically detected without user interaction. Instead of detecting an indoor location, we are directly looking for a detection of an attenuating environment. The basic idea is that signals from global navigation satellite services (GNSS) can be received practically everywhere on earth where there is a view to the sky. Where these signals are attenuated, the receiving device is assumed to be in an attenuating environment. In order to characterize such environment, we evaluate the detectable GNSS satellites and their carrier-to-noise density. Example measurements show that GNSS raw data can help to distinguish between low-attenuating locations and higher-attenuating locations. These measurements were conducted with GNSS receiver in an off-the-shelf Android tablet in order to show the feasibility of the approach.
