| 摘要 |
The invention relates to a device, in particular a radar sensor, having a voltage-controlled oscillator (O) for generating a high-frequency signal having an actual frequency, comprising a means (S) for setting a voltage for controlling the oscillator (O), wherein a voltage value of the voltage provided for controlling the oscillator (O) is assigned to each value of a setpoint frequency, and comprising means for calibration (FT1, FT2, Z, B, D, E), with which the voltage value assigned to a value of the setpoint frequency can be set, wherein the means for calibration (FT1, FT2, Z, B, D, E) have a means (D) for forming a frequency difference from a frequency and the setpoint frequency corresponding to the voltage set at the oscillator (O), wherein the means for calibration (FT1, FT2, Z, B, D, E) also have one or more frequency dividers (FT1, FT2) for generating a low-frequency signal from the high-frequency signal, a means (Z) for detecting the cycle duration of the low-frequency signal, a means (B) for calculating an auxiliary frequency corresponding to the actual frequency of the high-frequency signal from the cycle duration of the low-frequency signal, and a means (E) for setting the voltage values assigned to the setpoint frequencies as a function of the frequency difference between the auxiliary frequency and the setpoint frequency. |
