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This paper presents a novel methodology for signal generation with application to underwater ranging systems. The proposed technique resorts to a closed loop output voltage feedback, optimal control strategy that modifies the acoustic signals transmitted by the underwater transducers, aiming to improve the detection. Given the signals selected a priori, the design of the pulse-shaping equalizer is further modified to consider a preview term associated with the reference signals available. The performance of this enhancement methodology is assessed from the results obtained with realistic simulations and through the analysis of experimental data acquired in sea trials.
Date of Conference: 7-10 Aug. 2011