Communication adaptive adjustment method and system based on underwater acoustic communication frame blank time slot

Abstract

The application discloses a method and system for adaptive adjustment of communication based on a blank time slot of an underwater acoustic communication frame, comprising the following steps: acquiring an underwater acoustic communication frame, and collecting environmental noise data based on a blank time slot of the underwater acoustic communication frame; performing time-frequency conversion on the environmental noise data to generate a time-frequency feature map; inputting the time-frequency feature map into a residual hybrid expert network, wherein the residual hybrid expert network is trained by using a joint loss function, and the residual hybrid expert network comprises a shared backbone network, a gating network and a plurality of expert networks; extracting a high-dimensional feature vector from the time-frequency feature map through the shared backbone network; inputting the high-dimensional feature vector into the gating network, wherein the gating network outputs a hard routing selection result, and the hard routing selection result is used for indicating that a certain expert network is activated; inputting the high-dimensional feature vector into a corresponding expert network according to the hard routing selection result to obtain an environmental state classification result; acquiring an underwater acoustic communication physical layer processing strategy matched with a communication environment according to the environmental state classification result, and applying the underwater acoustic communication physical layer processing strategy to a current underwater acoustic communication frame.

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