Fig. 1. Block diagram of BFSK transmission.
Fig. 2. Block diagram of BCSK transmission.
Fig. 3. Spectrogram of the generated BCSK signal.
Fig. 4. Geometry of transmitter and receiver array for sea trial.
Fig. 5. Sound speed profile at 90 km.
Fig. 6. Channel impulse response characteristics at 90 km.
Fig. 7. Spectrogram of BFSK signal at 60 km range.
Fig. 8. Spectrogram of BCSK signal at 60 km range.
Fig. 9. Spectrogram of BFSK signal at 90 km range.
Fig. 10. Spectrogram of BCSK signal at 90 km range.
Fig. 11. Uncoded BER of BFSK signal at 90 km transmission.
Fig. 12. Uncoded BER of BCSK signal at 90 km transmission.
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