论文标题
基于LORA的头盔与无人驾驶飞机链接的数值和实验表征：一种链接建模的数值统计方法
Numerical and Experimental Characterization of LoRa-Based Helmet-to-Unmanned Aerial Vehicle Links on Flat Lands: A Numerical-Statistical Approach to Link Modeling
论文作者
论文摘要
在新一代收发器中使用洛拉沟通协议对搜救（SAR）程序具有吸引力，因为它们可以在恶劣的环境中运行，同时保持低功耗，同时保持低功耗。戴头盔配备了lora-radioss和lora lora lora在无人驾驶飞机中的洛拉经过lora lora persantivers的可能性，可能会在无人驾驶汽车中（无需启发），这可能会加强目标，并可能会构成。在本文中，通过考虑头盔佩戴者（站立或躺着）在平坦场上的可能位置，可以在理论上和实验上进行可实现的沟通范围，这代表了一个简单的SAR场景。表明和实验测试表明，对于站立位置，地面射击的多途径会产生强大的势力，可产生强烈的电源触动。通过降低无人机高度，可以将这种波动限制在距目标100 m之内。取而代之的是，对于更为关键的位置位置，接收到的功率轮廓是单调的，对姿势几乎不敏感。对于所有考虑的情况，可以利用由戴头盔佩戴者发出的信号根据头盔的强度定位，并且从理论上可以通过UAV无线电在平坦的地形上可检测到5公里。
The use of the LoRa communication protocol in a new generation of transceivers is attractive for search and rescue(SaR) procedures because they can operate in harsh environmentscovering vast areas while maintaining a low power consumption.The possibility of wearing helmets equipped with LoRa-radiosand installing LoRa transceivers in unmanned aerial vehicles (UAVs) will accelerate the localization of the targets, probably unconscious. In this paper, the achievable communication ranges of such links are theoretically and experimentally evaluated by considering the possible positions of the helmet wearer (standing or lying) on a flat field, representing a simple SaR scenario.Simulations and experimental tests demonstrated that, for the standing position, the ground-bounce multi-path produces strong fluctuations of the received power versus the Tx-Rx distances. Such fluctuations can be kept confined within 100 m from the target by lowering the UAV altitude. Instead, for a more critical lying position, the received power profile is monotonic and nearly insensitive to the posture. For all the considered cases, the signal emitted by the body-worn transceiver can be exploited to localize the helmet wearer based on its strength, and it is theoretically detectable by the UAV radio up to 5 km on flat terrain.
