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发明公开
CN104520678A 用于采样过程的去干扰的方法以及用于实施该方法的设备 有权

用于采样过程的去干扰的方法以及用于实施该方法的设备
摘要：
根据本发明，提供一种用于采样过程的去干扰的方法。所述方法包括以采样频率f(17)采样模拟的有用信号(16)以及确定是否存在干扰振幅(20)的步骤。当存在干扰振幅(20)时，在围绕等距的采样时刻的范围[-Δt；+Δt](21)内进行由所述采样频率f(17)确定的时间上等距的采样时刻的随机移位，其中，Δt是最大移位。然后，进行所述模拟的有用信号(60)的重新采样。重新确定是否存在干扰振幅(20)。当继续存在干扰振幅(20)时，进行所述最大移位的量值|Δt|的变化并且以所述采样时刻的随机移位的方法步骤重新开始。此外，提出一种相应的设备，所述设备包括用于以采样频率f(17)采样有用信号(16)的装置和用于干扰振幅确定的装置(50)，所述用于干扰振幅确定的装置设计用于确定所采样的有用信号(38)是否施加有干扰振幅(20)。用于干扰幅度确定的所述装置(50)还设计用于，当存在干扰幅度(20)时在围绕等距的采样时刻的范围[-Δt；+Δt](21)内随机移位由所述采样频率(17)确定的时间上等距的采样时刻。所述装置(50)还设计用于，当继续存在干扰幅度(20)时使所述最大移位的量值|Δt|变化。
摘要（英）：

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 [-[delta]t; +[delta]t] (21) about the equidistant sampling times, wherein [delta]t 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 l[delta]tl 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 [-[delta]t; +[delta]t] (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 l[delta]tl when an interference amplitude (20) continues to be present.

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