Analysis of constant phase contours of evaporation duct mode functions for waveguide mode propagation
Ziomek, Lawrence J.
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The M-Layer program tracks the phase lines Im(D(q)} = 0 and looks for their intersections with the lines Re(D(q()) = 0 for the locations of the zeros of the mode function D(q). These two types of constant phase lines are tracked and plotted over a search region which contains modes having a range attenuation rate of no more than 5 dB per km. Several new parameters for use in mode search are deduced from the results and some old ones are verified. Future studies in waveguide mode propagation theory pertaining to atmospheric ducts may benefit from this work. An improved mode search strategy is also proposed.
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