China's Simulation of Jamming Starlink Over Taiwan

Chinese researchers from Zhejiang University and the Beijing Institute of Technology have conducted a simulation to explore potential methods for disrupting SpaceX's Starlink satellite network during a hypothetical conflict over Taiwan. The study, published on November 5 in the journal *Systems Engineering and Electronics*, indicates that effectively jamming Starlink communications across Taiwan's approximately 36,000 square kilometers would require a substantial deployment of electronic warfare drones.

China Simulates Neutralizing StarlinkTaipei TimesNewsweekChina simulated a Starlink blockade over Taiwan that uses around 2,000 drones with jammers to create an 'electromagnetic shield' — CCP scientists devise potential plan to cut off satellite internet toGizmodo

Starlink operates with a constellation of over 10,000 low-Earth orbit satellites that utilize dynamic frequency hopping and multi-path connections, making traditional jamming methods largely ineffective. The study highlights that Starlink's user terminals connect to multiple satellites simultaneously, allowing them to switch connections rapidly if one signal is jammed. This characteristic poses significant challenges for any military attempting to disrupt its operations.

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The researchers concluded that a distributed jamming strategy is the only viable method to counter Starlink. Their simulations suggest that at least 935 synchronized airborne jammers would be necessary to cover the entire area of Taiwan effectively. If lower-powered jammers were utilized, this number could increase to around 2,000. These jammers would need to be deployed in a grid pattern at altitudes of approximately 20 kilometers, using drones, balloons, or aircraft to create a comprehensive electromagnetic barrier.

China simulated a Starlink blockade over Taiwan that uses around 2,000 drones with jammers to create an 'electromagnetic shield' — CCP scientists devise potential plan to cut off satellite internet to

The findings underscore the strategic importance of Starlink in modern warfare, particularly in the context of the Russia-Ukraine conflict, where it played a critical role in maintaining communications for Ukrainian forces. The Chinese military perceives Starlink as a potential threat that could enhance Taiwan's resilience against Chinese military operations. The simulation reflects a growing recognition of the need for advanced electronic warfare capabilities to counter such satellite networks.

Taipei Times

Despite the detailed simulation, the researchers acknowledged that their results remain preliminary due to the lack of publicly available data on Starlink's radiation patterns and anti-jamming technologies. This limitation raises questions about the feasibility of their proposed jamming strategy in real-world scenarios. Experts outside China have expressed skepticism regarding the practicality of deploying such a large number of drones effectively.

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The study's authors emphasized the necessity of a coordinated effort among numerous jammers to create a dense electromagnetic barrier capable of disrupting Starlink communications. They noted that the complexity of Starlink's operational dynamics complicates any jamming attempts, stating, "The orbital planes of Starlink are not fixed, and the movement trajectories of the constellation are highly complex."

Chinese Researchers Sketch a 2,000-Drone Plan to Knock Starlink Offline

As tensions in the Taiwan Strait continue to escalate, the implications of this research may influence future military strategies and technological developments in electronic warfare. The Chinese military's focus on countering satellite communications reflects a broader trend in modern warfare, where information dominance is increasingly critical. The outcomes of these simulations could shape the development of new countermeasures and strategies in the region.

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