Spatial Coherence of a Signal Reflected from a Time-Varying Random Surface.
NAVAL UNDERWATER SYSTEMS CENTER NEWPORT R I
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The coherence between two points of the received acoustic waveform after reflection from a time varying random surface is evaluated for the far field case. A Neumann-Pierson spectrum and an isotropic sea is considered. For the low roughness case, the coherence is computed for wind speeds from 2 to 10 knots. For the specular and non-specular direction, the coherent region is on the order of the pattern resulting from the insonified surface area. Author
- Numerical Mathematics
- Acoustic Detection and Detectors