| 摘要 |
Provided are a digital signal processing method and device. The method comprises: conducting interpolation on a first digital signal with N points, to obtain a second digital signal, wherein each point of the first digital signal is interpolated into M points, where both N and M are greater than or equal to 2, and the phase difference between two adjacent points of the M points is Q; dividing N*M points of the second digital signal into N groups in sequence, wherein the N points of the first digital signal are located in positions except for the two end points in corresponding groups; selecting a point with the maximum amplitude from each group of the N groups, to obtain a third digital signal, wherein the phase difference between each point of the third digital signal and a corresponding point of the N points is less than (M-1)*Q; and according to the third digital signal, conducting peak clipping processing on the first digital signal, thereby solving the problem in the related art that the phase error between an offset pulse and a main signal is large when peak clipping is conducted. |
