Browsing by Author "Gingras, Donald F."
Now showing items 1-6 of 6
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Channel-adapted source for shallow water
Gingras, Donald F. (NATO. SACLANTCEN, 1993/08)In shallow water areas the utilization of active sonar is complicated by the fact that in these environments the performance of active systems is degraded by source signal interaction with channel boundaries. These boundary ... -
Impact of uncertain environmental knowledge on the shallow-water transfer function
Gingras, Donald F. (NATO. SACLANTCEN, 1992/12)It is assumed that the acoustic channel can be modeled as a linear time-invariant space-variant filter. In this case, from linear systems theory, it is known that the filter output, that is the predicted source signal ... -
Inversion for geometric and geoacoustic parameters in shallow water: experimental results
Gingras, Donald F.; Gerstoft, P. (NATO. SACLANTCEN, 1994/12)Experimental results on the estimation of both geometric and geoacoustic parameters in shallow water are presented. Genetic algorithms are used for estimation of the forward model parameters, the -
Parameter estimation using multi-frequency range-dependent acoustic data in shallow water
Gerstoft, Peter; Gingras, Donald F. (NATO. SACLANTCEN, 1996/11)The estimation of all forward model parameters - geometric, geoacoustic, -
Robust broadband matched-field processing: performance in shallow water by simulation
Gingras, Donald F. (NATO. SACLANTCEN, 1993/11)An issue of concern for matched-field processing is the strong dependence between performance and -
Single mode excitation, attenuation and backscatter in shallow water
Gingras, Donald F. (NATO. SACLANTCEN, 1995/10)Normal mode theory is used to illustrate that a vertical array of weighted sources driven in an