| 摘要 |
Provided are a signal reconstruction method and apparatus. The signal reconstruction method of the present invention comprises: selecting a first portion of sampling points from all the sampling points, and determining a matrix corresponding to the first portion of the sampling points; according to the first portion of the sampling points and the matrix corresponding to the first portion of the sampling points, calculating 2-norm of a residual obtained after the Sth iteration of the jth round of iteration update is performed on a signal to be reconstructed; calculating 2-norm of a residual obtained after the Sth iteration of the (j+1)th round of iteration update is performed on the signal to be reconstructed according to temporary sampling points and a temporary sampling matrix; and comparing the magnitudes of the 2-norm of the residual obtained after the Sth iteration of the jth round of iteration update and the 2-norm of the residual obtained after the Sth iteration of the (j+1)th round of iteration update, and determining a reconstruction result of the signal to be reconstructed according to a comparison result. The embodiment of the present invention solves the problem in the prior art that the accuracy of signal reconstruction is not high, thereby improving the accuracy of the signal reconstruction. |
