On ADS-B Sensor Placement for Secure Wide-Area Multilateration
On ADS-B Sensor Placement for Secure Wide-Area Multilateration
复制标题
关于安全广域多点定位的 ADS-B 传感器放置
作者：
Ala Darabseh;Evangelos Bitsikas;Brice Tedongmo;Christina Pöpper
随着广播式自动相关监视（ADS-B）的日益普及，地面传感器的布置对于空中交通管制（ATC）控制空域至关重要。然而，目前的传感器以非结构化的方式放置，使一些区域没有覆盖，而其他区域则被传感器过度密集。因此，具有覆盖异常的区域可能会导致抑制准确的ADS-B验证以及ADS-B完全可用性的问题。在本文中，我们解决ADS-B特定的最佳传感器放置（OSP）问题。重要的是最佳覆盖范围以及对收到的ADS-B信息进行安全和准确的验证。具体而言，我们考虑到以下目标。首先，我们确定覆盖欧洲等特定区域所需的最低传感器数量。其次，我们产生了一个更好的放置的电流传感器的安全性和精度的几何精度因子（GDOP）。最后，我们计算当前传感器设置距离我们导出的最优解以及达到最优的成本。我们的实验表明，解决OSP的理想适应度得分低于0.1，这意味着所需和实现的GDOP的均方误差（MSE）非常小，从而实现了接近最佳的设置。
As automatic dependent surveillance–broadcast (ADS-B) becomes more prevalent, the placement of on-ground sensors is vital for Air Traffic Control (ATC) to control the airspace. However, the current sensors are placed in an unstructured way that keeps some areas without coverage, and others are over-densified by sensors. Therefore, areas with coverage anomalies may cause issues that inhibit accurate ADS-B verifications as well as the availability of ADS-B altogether. In this paper, we tackle the ADS-B-specific optimal sensor placement (OSP) problem. Of importance are both the optimal coverage and the secure and accurate verification of received ADS-B messages. Specifically, we take into account the following objectives. First, we determine the minimum required number of sensors in order to cover a certain area like Europe. Second, we produce a better placement of the current sensors with respect to the security and accuracy of geometric dilution of precision (GDOP). Finally, we calculate how far the current sensor setup is from our derived optimal solution as well as the cost to reach the optimality. Our experiments show that the ideal fitness score for solving the OSP is below 0.1, meaning that the mean squared error (MSE) of the required and achieved GDOPs is significantly small, thus accomplishing a near-optimal setup.