Chinese Researchers Simulate Large-Scale Starlink Electronic Warfare, Deeming Jamming Feasible with Drone Swarms

Chinese Simulation Targets Starlink Communications

A team of Chinese researchers has conducted a detailed simulation of large-scale electronic warfare operations against Elon Musk's Starlink satellite internet constellation. The findings, published on November 5 in the Chinese peer-reviewed journal Systems Engineering and Electronics, indicate that it is technically feasible to jam Starlink communications across a region the size of Taiwan, albeit requiring a significant deployment of resources.

The study, conducted by researchers from Zhejiang University and the Beijing Institute of Technology (BIT), focused on a 'distributed jamming strategy'. This approach deviates from traditional methods that rely on a few powerful ground stations. Instead, it proposes deploying hundreds or even thousands of small, synchronized jammers across the sky on platforms such as drones, balloons, or aircraft, effectively creating an 'electromagnetic shield' over a battlefield.

Methodology and Scale of Proposed Jamming

The simulation modeled the dynamic positioning of Starlink satellites over a 12-hour period above eastern China. Researchers analyzed various factors, including the downlink signal strength from Starlink satellites, the reception patterns of user terminals, the propagation of interference from ground to sky and sky to ground, and the cumulative effect of multiple jammers. Virtual jammers were positioned at an altitude of 20 kilometers (12 miles), spaced between 5 and 9 kilometers (3 and 5.6 miles) apart in a grid-like formation.

The results suggest that effectively jamming Starlink across an area comparable to Taiwan would necessitate the deployment of 1,000 to 2,000 electronic warfare drones. The simulation explored different antenna types and jamming power levels, finding that under optimal conditions, using a powerful 26 decibel-watt (dBW) jamming source and a narrow-beam antenna, each jammer node could suppress Starlink reception across an average area of 38.5 square kilometers (14.8 square miles).

Strategic Implications and China's Concerns

China views Starlink as a potential threat to its national security, citing its vast global coverage and robust communication capabilities. The system's demonstrated effectiveness in maintaining communications during the Russia-Ukraine conflict has particularly heightened Beijing's concerns regarding its potential use by adversaries in military confrontations or for intelligence gathering.

Chinese government and military scientists have published numerous papers exploring various countermeasures against Starlink, ranging from physical destruction methods like lasers and attack satellites to supply-chain sabotage and diplomatic efforts. The current simulation underscores China's commitment to understanding and potentially neutralizing the strategic advantages offered by satellite constellations like Starlink, focusing on reversible and non-destructive electronic warfare tactics.