Reverberation Suppression Using Wideband Doppler-Sensitive Pulses
The influence of transmitted waveforms on the signal-to-reverberation ratio (SRR) of a low-frequency active sonar is analyzed both theoretically and experimentally. Reverberation experiments have been conducted during a sea trial in a littoral water environment in October 1999. The aim of the trials...
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| Veröffentlicht in: | IEEE journal of oceanic engineering 2008-10, Vol.33 (4), p.419-433 |
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| creator | Doisy, Y. Deruaz, L. van IJsselmuide, S.P. Beerens, S.P. Been, R. |
| description | The influence of transmitted waveforms on the signal-to-reverberation ratio (SRR) of a low-frequency active sonar is analyzed both theoretically and experimentally. Reverberation experiments have been conducted during a sea trial in a littoral water environment in October 1999. The aim of the trials was to compare the performance of three classes of waveforms: standard hyperbolic frequency-modulated (HFM) waveforms, continuous waveforms (CWs), and innovative pulse trains of linear frequency-modulated (PTFM) waveforms. Transmissions were combined (CW/PTFM train) or intermitted (HFM) to compare the performance of the three classes in (exactly) the same environment. Experimental results in highly reverberant environment illustrated that PTFM pulses allow a reduction in reverberation power greater than 10 dB over the standard detection pulses for slowly moving targets. The results are in agreement with theoretical predictions. |
| doi_str_mv | 10.1109/JOE.2008.2002582 |
| format | Article |
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| subjects | Acoustic scattering Active sonar Doppler Frequency Laboratories Marine matched filter Moving targets Network address translation Noise levels Physics Reverberation Sea measurements Sea trials Sonar Sonar detection sonar waveforms Synthetic aperture sonar Trains Waveforms Wideband |
| title | Reverberation Suppression Using Wideband Doppler-Sensitive Pulses |
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