Abstract
The signal-processing capability of an animal sonar system such as that of the porpoise may be dependent on the spatial correlation of both the target echo and the background interference. In a computer simulation study, digital echo wave-forms at two spatially separated receivers were computed for targets modeled as a spatial distribution of point reflectors. Wide-band signals similar to those employed by the Atlantic bottlenose porpoise were used. The dependence of the spatial correlation of the echo on receiver separation, frequency, bandwidth, and target geometry is discussed. [Work supported by the Naval Sea Systems Command.]
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