Method for classifying an object in an area surrounding a motor vehicle, driver assistance system and motor vehicle

A method for classifying an object in a surrounding area of a motor vehicle, the method comprising:

• a) transmission of radar signals into the surrounding area by at least one motor vehicle radar sensor and reception of radar signals reflected from the object;
• b) provision of the information obtained from the radar signals as radar data;
• c) production of a power spectrum on the basis of at least one distance value and/or speed value and/or intensity value that the radar data contain as information;
• d) comparison of at least one spectrum range that the power spectrum contains with an intensity threshold value and selection of the spectrum range as a potential object when the intensity thereof is greater than the intensity threshold value;
• e) performance of a further cycle with steps a) to d);
• f) identification of the potential object as an actual object on the basis of whether the potential object has been selected both in a first cycle according to steps a) to d) and at least in the second cycle according to step e);
• g) comparison of at least one feature of the identified object with reference features of a reference object;
• and
• h) assignment of the object to a class from multiple different classes on the basis of the comparison according to step g),
• wherein the at least one feature is an intensity range of the object from the power spectrum,
• wherein the intensity range of the object comprises multiple spectrum ranges, and
• wherein the intensity range of the object is taken into consideration on the basis of a rectangular detail from the power spectrum.