Level gage

The invention relates to a distance measuring device (1) based on an FMCW radar, by means of which a distance (d) to an object (2) can be reliably determined. For this purpose, the distance measuring device (1) comprises at least the following components: a signal generation unit (11) for generating a corresponding high-frequency signal (# imgabs0 #); an HF antenna (12) for transmitting and receiving a radar signal (# imgabs1 #); and an FMCW-specific analysis unit (13). The evaluation unit (13) is characterized by an additional averaging stage (134), which averages the intermediate frequency signal (# imgabs4 #) over time in the signal direction before generating the frequency spectrum (# imgabs2 #, # imgabs3 #). In this manner, this significantly improves the signal to noise ratio of the intermediate frequency signal (# imgabs5 #). In addition, possibly limited A/D converter resolution and inaccuracies associated therewith are thus averaged. Meanwhile, the trailing effect can be prevented. Generally, the cor