The Plateau de Bure Interferometer (PdBI) is a microwave interferometer on the Plateau de Bure (altitude, 2550 meters) in the French Alps operated by the Institut de radioastronomie millimétrique. It has six 15-meter antennas and observes using bands at 3, 2, 1.8, and 0.8 mm. It can resolve images to 1 arcsecond.
PdBI is being expanded into the Northern Extended Millimeter Array (NOEMA), which will eventually include six more 15-meter antennas and offer longer baselines. As of 2018, ten antennas are in operation.