METHOD FOR DETECTING LOSS OF SENSITIVITY OF A FMCW RADAR LOCATING DEVICE BY DIFFUSE SOURCES OF LOSS

摘要

The invention relates to a method for detecting losses of sensitivity of a FMCW radar locating device by diffuse sources of loss (30), wherein a transmission signal is emitted by the radar locating device, the frequency of which is periodically modulated in sequential modulation ramps, and at least one performance characteristic of at least a frequency portion of a signal received by the radar locating device is evaluated. The invention is characterized in that the performance of the transmission signal varies cyclically, in each case after completing a modulation ramp, and the loss of sensitivity is determined on the basis of differences in the performance characteristics of the signals which are received at sequential modulation ramps with identical modulation.