The effects of the internal waves on temporal correlation of matched-field processing in shallow water

The effects of the linear internal waves and solitons on the temporal correlation of matched-field processing (MFP) in shallow water for the sources with different frequencies and different source depths were numerically investigated by using ocean environment measurements from an experiment. It is shown that the temporal correlation of MFP decreases as the amplitude of solitons or the average energy density of linear internal waves increased. For a source with lower frequency or located below the thermocline, the temporal correlation of MFP is less affected by internal waves, and the length of MFP correlation is longer. Moreover, the effects of the range between solitons and source on the temporal correlation of MFP are relatively small.