Mid-Frequency Propagation Modeling Using the Waveguide Invariant

摘要: Abstract : Random variability in shallow water will induce a propagating acoustic field. The long-term goal of this research is to quantify how random the ocean environment translates into field and associated signal processing algorithms midfrequency (1-10 kHz) band. In present funding cycle, emphasis on waveguide invariant. Constructive destruction interference an inevitable consequence multipath propagation water. If sufficiently benign, so-called invariant describes resulting pattern. invariant, usually designated as beta, has traditionally been regarded low-frequency phenomenon. objectives work are twofold: first, extend concept so it may be incorporated algorithms, second limitations these imposed by shallow-water internal waves.