Abstract
The problem of analysis of random ultrasonic backscatter is treated using linear time-varying channel theory. The backscatter is modeled to have random and deterministic echo components, where the emphasis is on the estimation of the random component in the presence of the deterministic component. A tissue characterizing mechanism is modeled as the range correlation of the random backscatter component, which gives rise to a frequency signature function. Finally, the statistics of the resulting backscatter are given as non-central Chi Squared.
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