Method for determining a spatial relationship or spatial distribution of magnetic particles

The invention relates to an MPI process, where m in a receiving step MPI-time signals with a total of M x N measured values A a. selecting an imaging period of the scanning period for a composite timing signal z z b. a corrected time signal z ~ is determined from the composite time signal z, wherein determining the corrected time signal ~ includes, for windowing, a Fourier transform and a reduction in the number of the frequency values ​​by the elimination of intermediate frequencies of the Fourier transform of the windowed composite time signal. a spatial arrangement and / or distribution of the magnetic particles is calculated in a reconstruction step, and one or more variables derived from it stored and / or displayed in a display step, the results of reconstruction and / or. In this way, broadband noise can be effectively suppressed.