Fig. 5From: Reverberation suppression using non-negative matrix factorization to detect low-Doppler target with continuous wave active sonarEcho frequency basis vectors at a r=7, b r=8, c r=9, d r=10, e r=11, and f r=12 (input SRR =−12 dB). The x-axis of each graph denotes frequency normalized by the CW ping frequencyBack to article page