| 摘要 |
An FMCW radar sensor and method for determining information about distances and relative velocities of objects using an FMCW radar, in which a transmission signal's frequency is modulated as sequences of frequency ramps, the center points of the frequency ramps within a respective sequence lying on a higher-order ramp; a higher-order frequency spectrum being determined for at least one frequency position in frequency spectra of the baseband partial signals over the chronological sequence of amplitudes at the frequency position in the frequency spectra of the sequence of baseband partial signals; peaks in the at least one higher-order spectrum being represented by straight lines in a distance/velocity space, the respective slope of which is a function of the higher-order ramp's slope; and bands of the distance/velocity space of the respective peaks of the frequency positions in the frequency spectra of the baseband partial signals being considered in the frequency matching. |
