Enhanced radar cross sections due to multiple scattering in turbulence

Summary form only given. The authors present a theoretical study of the altered radar cross sections and the scintillation index on monostatic and bistatic paths. They develop an expression for the intensity scintillation index on a two-way (radar) path in terms of the one-way index and the correlation between scintillations produced on the uplink and downlink. The expression is appropriate for monostatic (fully correlated) and bistatic (totally or partially uncorrelated, or anticorrelated) paths whose links are statistically similar and obey Nakagami-m statistics. Enhancement occurs due to the correlation between the uplink and downlink propagations. If the uplink and downlink amplitudes are assumed to be Nakagami-m variables, the apparent radar cross sections are enhanced by a factor ranging from 1 to 2 (Rayleigh) to 3. The square of the two-way scintillation index for the monostatic path varies from 0 to 5 (Rayleigh) to 10.7.<
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