A system for detecting objects, in particular for a motor vehicle, is proposed in which, with a radar sensor, the radar signals reflected by the object are processed for ascertaining the distance (d) and/or the relative or approach speed (Cv) of the object. The digital signals from at least one channel (I, Q) of the radar sensor are processed until a first evaluation capability is obtained as a distance signal (d) or as an approach speed signal (Cv), with which it is defined which data are ascertained and will be made available to an interface (6) between the radar sensor and a downstream control unit (7).