Fig. 14From: Reverberation suppression using non-negative matrix factorization to detect low-Doppler target with continuous wave active sonarFrequency analysis from measurement experiments. Spectrograms of a received signal, b output signal of the SSE algorithm, c output signal of the PCI algorithm, d output signal of the AR pre-whitening, and e output signal of the proposed algorithm. Red circle indicates the target echo locationBack to article page