Analysis of Signal Processing System for Electronic Protection regarding the Air Base Security
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Abstract
In the operation of unmanned aerial vehicles (UAVs) for perimeter surveillance around airbases, communication systems are paramount, encompassing both video transmission and flight control. The presence of communication signals and/or similar signals can cause significant damage to the UAV's communication links, severely impacting mission performance. This research designs a simulation system capable of modeling signal interference, categorizing it into two types: unintentional and intentional interference. The system employs stochastic geometry, a mathematical model widely used to simulate interference in both wireless communication systems and automotive radar systems, to randomly position interference sources. Furthermore, the two types of interference are designed to have distinct characteristics. Experimental results demonstrate that the system can effectively simulate the impact of both interference types, consistent with the initial hypotheses. The mathematical models employed provide a reference, allowing the obtained average interference values to serve as a baseline for defining the lower bounds of UAV communication systems. Additionally, this research showcases the use of a prototype interference detector utilizing an embedded software-defined radio (SDR) device, the USRP-E312. The results demonstrate its efficiency and suitability for further development into a practical, deployable system.
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