对5G基站与航空无线电高度计的干扰进行部署保护
Zhaobin Duan1,2, Zhenyang Ma1,2, Jie Bai1,2
1Key Lab of Civil Aircraft Airworthiness Technology, Tianjin 300300, China.
Sensors (Basel, Switzerland)
|April 13, 2024
概括
这项研究引入了一种新方法,以保护飞机无线电高度计免受5G基站干扰. 它定义了安全区,并使用功率控制来确保航空安全.
科学领域:
- 航空工程 航空工程
- 电信工程 电信工程 电信工程
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 航空无线电高度计 (RA) 对于安全的飞机操作至关重要.
- 新兴的第五代 (5G) 电信基站 (BS) 对RAS构成潜在的干扰风险.
- 现有的保护方法可能无法充分解决5G干扰的复杂性.
研究的目的:
- 开发和验证一种新型的部署保护方法,以保护RA免受5G BS干扰.
- 确定可靠的水平和垂直禁区,以确保RA免疫力.
- 分析功率控制和角度关闭缓解技术的有效性.
主要方法:
- 开发一个综合干扰模型来定义禁区.
- 调查水平和垂直禁区的变化.
- 在定义区域内模拟和分析功率控制和角度关闭方法.
- 在不同的操作场景中验证,包括不同的BS类型,天线参数,飞行高度和飞机态度.
主要成果:
- 拟议的方法有效地保护RA免受5G干扰.
- 定义的禁区在防止有害信号重叠方面表现出可靠性.
- 功率控制和角度关闭技术显示出显著的缓解能力.
- 验证证实了在广泛的真实世界航空和5G部署条件中的稳定性.
结论:
- 这种新型的部署保护方法为缓解RA的5G干扰提供了可行的解决方案.
- 这些发现为安全民用航空运营和在机场附近部署战略5G基站提供了关键指导.
- 这项研究有助于在不断变化的电信环境中确保关键航空系统的持续安全和可靠性.
相关概念视频
Errors in Global Positioning System
44
Global Positioning System (GPS) technology has revolutionized navigation and positioning, but its accuracy is often compromised by various errors. These errors, stemming from environmental, satellite, and receiver-related factors, require careful mitigation to ensure reliable performance across applications.Atmospheric ErrorsGPS signals travel through the Earth’s ionosphere and troposphere, introducing delays which affect accuracy. The ionosphere is strongly influenced by charged particles,...
44
Design Example: Identifying the Locations of Monuments in the Field Using Global Positioning System Device
28
Surveyors use Global Positioning System (GPS) technology to measure the precise location and elevation of points on Earth. In a recent survey, GPS receivers were used to determine the coordinates and elevations of two park monuments. The process involved careful mission planning, data collection, and correction to ensure accuracy. The survey began with mission planning to identify optimal satellite visibility and minimize Position Dilution of Precision (PDOP). A geodetic control point...
28
Influence of Earth's Curvature and Atmospheric Refraction on Leveling
92
During leveling, the Earth's curvature and atmospheric refraction introduce deviations in the line of sight from a true horizontal reference. When the line of sight is leveled, it remains perpendicular to the plumb line only at a single point. Beyond this, it deviates due to the Earth’s curvature, represented by the correction C. For a sight distance D, the deviation can be derived using the relationship:This relationship shows that the deviation increases quadratically with distance.
92
Common Leveling Mistakes and Errors
72
A survey team is tasked with determining the elevation difference between points Point A and Point B, separated by uneven terrain. They use a leveling instrument and a leveling rod.Common MistakesMisreading the Rod: During a backsight reading at Point A, the instrumentman observes the rod partially obscured by tall grass. Instead of reading 1.135 m, they mistakenly record 1.735 m due to the misalignment of the crosshair with the wrong graduation. This error adds 0.600 m to all subsequent...
72
Field Application of Global Positioning System
45
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
45
Atomic Absorption Spectroscopy: Interference
747
Interference leads to systematic error in atomic absorption (AA) measurements by enhancing or diminishing the analytical signal or the background. These interferences can be grouped into three main categories: spectral interference, chemical interference, and physical interference.
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
Spectral interference occurs when signals from other elements or molecules overlap with the analyte signal, falsely elevating or masking the analyte's absorbance. This interference can be corrected using Zeeman,...
747


