Radio-detection of UHECR by the CODALEMA experiment

International audienceThe principle of the CODALEMA experiment is based on an original approach of the de-tection of radio transients associated with extensive air showers induced by ultra high-energy cosmic rays. Since September 2006, CODALEMA has been under operation with a new setup at the Nançay Radio Observatory, France. It uses 16 broadband dipole antennas associated with 13 particle detectors generating the trigger and allowing the primary cosmic ray energy estimation. We will present evi-dence for the radio detection of cosmic rays above $10^{17}$ eV, based on an event-by-event analysis and we will discuss the radio characteristics of these showers