| Popis: |
In a recent paper by Dyson, Munk, and Zetler [’’Interpretation of multipath scintillations Eleuthera to Bermuda in terms of internal waves and tides,’’ J. Acoust. Soc. Am. 59, 1121–1133 (1976)], approximate expressions were derived for the spectrum of the phase and intensity scintillations of a sinusoidal signal after propagation through a certain random multipath channel. From the multipath structure specified in that paper, exact results are obtained for the phase‐derivative fluctuation spectrum. This expression can be easily evaluated and compared to the approximation. In addition, amplitude and square‐amplitude fluctuation spectra are derived.Subject Classification: [43]30.20, [43]30.30. |
