A passive source ranging method based on the frequency warping transform of the vertical intensity flux in shallow water
Waterfall plot of the unwarped and warped pressure autocorrelation function at different ranges. (a) Unwarped pressure autocorrelation function with 0 s zeroing length, (b) warped pressure autocorrelation function with 0 s zeroing length, (c) unwarped pressure autocorrelation function with 0.01 s zeroing length, and (d) warped pressure autocorrelation function with 0.01 s zeroing length.
