This paper proposes a novel approach for planetary subsurface exploration using unmanned aerial vehicle (UAV) swarms. These UAVs act as probes, where one sends the RF signal and the others collect the backscattered signals from multiple angles. This multistatic approach increases resolution and sensitivity for subsurface characterization. The method combines tomographic and ray-tracing techniques for image recovery, enabling the simultaneous capture of data from diverse geometries to improve resolution and mitigate vacuum-ground effects. This paper demonstrates that bistatic tomographic approaches can form images of subsurface objects more accurately.
