English 
Portable Anti-Drone Device: A Critical Solution for Securing AirspaceIn recent years, the proliferation of drones, or unmanned aerial vehicles (UAVs), has raised significant concerns across various sectors, from private security to national defense. With their ability to invade restricted airspace,
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Drones typically rely on several types of signals: GPS for navigation, radio frequencies for communication with the operator, and sometimes Wi-Fi for video transmission. Blocking these signals is technically possible through devices known as **signal jammers**. These jammers can interfere with the radio waves or GPS signals, disrupting the drone's ability to receive commands or track its location.
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This paper focuses on the security risks caused by drones while bringing convenience to life, such as airport interference and privacy invasion, which have triggered a strong demand for drone control in society. The article systematically introduces a variety of anti-drone technical means, including detection technologies such as radar systems, optical sensors, and radio spectrum monitoring, as well as countermeasures such as electromagnetic interference, laser weapons, network takeover systems, and physical interception, and cites practical application cases.
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