Fig. 1. Experiment environment.
Fig. 2. Received signals in frequency-azimuth domain.
Fig. 3. Short-Time Fourier Transform (STFT) of five beamformed signals corresponding to the Fig. 2. (a) 5th beam, (b) 6th beam, (c) 7th beam, (d) 8th beam, (e) 9th beam.
Fig. 4. Power spectrum of middle beam (7th beam) signal at 10 s.
Fig. 5. STFT of separated signals by FastICA algorithm (a) interference (b) signal.
Fig. 6. Power spectrums of separated signals by Fast-ICA algorithm (a) interference (b) signal.
Fig. 7. STFT of separated signals by NNMF algorithm (a) interference (b) signal.
Fig. 8. Power spectrums of separated signals by NNMF algorithm (a) interference (b) signal.
Fig. 9. STFT of separated signals by JADE algorithm (a) interference (b) signal.
Fig. 10. Power spectrums of separated signals by JADE algorithm (a) interference (b) signal.
Table 1. Comparison of SIRs (signal to interference ratio) computed by three algorithms according to number of signals [dB].
Table 2. Comparison of computation times of three algorithms [s].
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