Can stealth aircraft be detected by repurposing the use of Starlink satellites? A recent Chinese study suggests a method to track these elusive planes.
Stealth aircraft, such as the F-22, are designed to be undetectable by radar by reducing their signature and deflecting beams. However, Chinese researchers have identified a potential vulnerability by exploiting the Starlink constellation.
Deployment of Starlink satellites in orbit
By altering the satellite signal, these planes could influence the quality of transmissions. The scientists tested this hypothesis with a commercial drone, the DJI Phantom 4 Pro, which simulates the radar footprint of a stealth aircraft. The experiment took place in China using signals captured from Starlink satellites.
The approach is based on the fact that signal disruptions, caused by an object passing through the line between the satellite and the ground station, can reveal the presence of the object. The researchers were able to locate the drone by observing variations in the electromagnetic signals from the satellites.
Starlink, with its dense constellation, offers extensive and continuous coverage, ideal for this kind of detection. This passive method has an advantage over traditional radars, which require active emissions to find their targets.
While the tests focused on a low-altitude drone, the researchers anticipate potential improvements. The increasing number of Starlink satellites in the coming years could bolster this technique.
The Chinese scientists, while noting that their method is still in an experimental phase, foresee military applications. They are also considering the possibility of using similar constellations in the future, such as Thousand Sails (a Chinese project).
Detecting stealth aircraft remains a complex task, requiring thorough analysis of signal data. Preliminary results indicate that this technology may provide an interesting alternative to traditional radar systems.
Future developments could enhance this technique, making it more effective in military applications. The researchers are continuing to refine their approach to address the challenges posed by stealth aircraft.
Article author: Cédric DEPOND