Underwater acoustic imaging: Image reconstruction using speckle interferometry.
The objective of this thesis is to study a new technique to underwater acoustic imaging system to obtain high resolution, high contrast images through turbulence. Our technique, which incorporates classic speckle interferometry with the spatial bispectrum, is based on imaging procedures developed by optical astronomers. A sensor array is used to perform imaging by decomposing the image into a Fourier series. The simulation results show that our technique can be used to estimate the magnitude and phase spectrum of the Fourier series coefficients.
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