Method and apparatus for simulating phase coherent signal reflections in media containing randomly distributed targets
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United States of America Patent
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Oct 3, 1989
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N/A
app pub date -
May 23, 1988
filing date -
May 23, 1988
priority date (Note) -
Expired
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Abstract
A method of simulating phase coherent signal reflections in media containing randomly distributed targets capable of scattering signals transmitted through the media, wherein the energy of signals directly scattered by the targets is significantly greater than the energy of signals multiply scattered by the targets. A reference signal having a wavelength which is small in comparison to the mean spacing between the targets is modulated and then transmitted through the target-containing medium. The targets produce scattered echoes of the signal, from which normalized in-phase and quadrature components are derived and separately, cumulatively summed, 'n' times, until their variance becomes a linear function of 1/n.
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