Abstract: A receiving device of a detection device for monitoring a monitoring region for objects using electromagnetic scanning signals is disclosed. The device has a signal converting means for converting electromagnetic signals originating from electromagnetic scanning signals into electric signals and a frequency analyzing means for analyzing the frequency of signals. The frequency analyzing means has at least one spectral analyzing means, by which magnetic signals are analyzed to form at least one electromagnetic spectrum that is output in a spectrum output range of the at least one spectral analyzing means. At least two signal converting means, by which separate electric signals are ascertained, are assigned to different sections of a spectrum output range of the spectral analyzing means. The different sections of the spectrum output range correspond to different frequency ranges of an electromagnetic spectrum.

Abstract: A received-signal processing apparatus of a detection device for monitoring at least one monitoring region for objects by means of electromagnetic scanning signals is disclosed. The received-signal processing apparatus has at least one frequency analysis means for the frequency analysis of electromagnetic received signals, which are determined from echo signals of electromagnetic scanning signals reflected in at least one monitoring region. The received-signal processing apparatus has a plurality of functionally parallel frequency filters having at least partially different frequency passbands. At least one frequency filter has at least one frequency labeling means, by which the passed received signal can be labeled with a frequency characteristic which characterizes the frequency passband of the at least one passage-allowing frequency filter.