Fig. 13

Visualization of the extracted features of four models for the Ottawa testing dataset with SNR = \(-8\,\textrm{dB}\). (a) DResnet, (b) ECANet, (c) MRCFN, (d) ours.

Visualization of the extracted features of four models for the Ottawa testing dataset with SNR = \(-8\,\textrm{dB}\). (a) DResnet, (b) ECANet, (c) MRCFN, (d) ours.