| 摘要 |
The invention relates to a method for interference suppression of a sampling process. The method includes the method step of sampling a useful analogue signal (16) with a sampling frequency f (17) and determining whether an interference amplitude (20) is present. If an interference amplitude (20) is present, a stochastic shift of the sampling times, which are equidistant in terms of time and are determined by the sampling frequency f (17), is carried out within a range [-Deltat; +Deltat] (21) about the equidistant sampling times, wherein Deltat is the maximum shift. Then, new sampling of the useful analogue signal (16) is carried out. It is again determined whether an interference amplitude (20) is present. If an interference amplitude (20) continues to be present, a change in the amount of the maximum shift lDeltatl is carried out, and the method step of stochastic shifting of the sampling times is commenced anew. Furthermore, the invention relates to a corresponding device comprising a means for sampling a useful signal (16) with a sampling frequency f (17) and a means for interference amplitude determination (50) which is designed to determine whether the sampled useful signal (38) is encumbered by an interference amplitude (20). The means for interference amplitude determination (50) is also designed for stochastic shifting of the sampling times, which are equidistant in terms of time and are determined by the sampling frequency f (17), within a range [-Deltat; +Deltat] (21) about the equidistant sampling times when an interference amplitude (20) is present. The means (50) is then also designed to change the amount of the maximum shift lDeltatl when an interference amplitude (20) continues to be present. |
