| 摘要 |
An FMCW radar sensor and a method for locating a radar target (18), in which FMCW radar measurements are carried out with transmission antennas (12; 15) with different fields of view (p), which differ in terms of aperture angle and/or range, wherein the measurements respectively comprise time-nested sequences (22; 26; 32; 36; 40; 42; 44) of ramps (24; 28; 34; 38; 41; 43; 45) and measurements with different fields of view (p) are interwoven in time, ambiguous values for the relative speed (v) of the radar target (18) are determined from a position (k, l) of a peak in a two-dimensional spectrum (56; 57); phase relations between the spectral values of spectra (X) are monitored in respect of correspondence with phase relations (a(v,m)) expected for a plurality of the determined values of the relative speed (v), and an estimated value for the relative speed (v) of the radar target (18) is selected on the basis thereof from the specified, periodic values of the relative speed (v). |
