Security Risk Assessment of UA Line-of-Sight Communication Link

This paper deeply analyzed the communication requirements of unmanned aircraft (UA) in various operation scenarios, selected a representative point-to-point communication link system as the research object, and relied on improved security analysis methods to identify key risk factors. The study adopts methods such as functional hazard assessment and fault tree analysis to analyze the design characteristics, operating scenarios, and drone safety risks of point-to-point line of sight communication links. The main risk factors affecting the safe and reliable flight of drones are identified to ensure the comprehensiveness and accuracy of risk assessment. The method of improved security analysis not only provides scientific guidance and reference for the security assessment of communication link system, but also has direct practical significance for the actual UA communication link design, risk management and fault prevention, and has important application value for improving the safety and reliability of UA system and ensuring the safe operation of UA.