Phased array radar intermediate frequency signal real-time simulation method based on heterogeneous computing

Abstract

The application belongs to the technical field of radar signal simulation, and discloses a phased array radar intermediate frequency signal real-time simulation method based on heterogeneous computing, which comprises the following steps: receiving simulation scene configuration instruction, analyzing array topology parameters and beam scheduling time sequence description information, and generating simulation task description data; performing two-dimensional decomposition on a multi-target echo generation task according to an array element channel dimension and a pulse time sequence dimension, distinguishing the computing units into complex vector types and sampling interpolation types, mapping the computing units to corresponding heterogeneous computing nodes to generate a task allocation atlas; each node executes the computing units in parallel to generate component signal data, performs flow water cascade splicing according to a beam pointing sequence time sequence beat, sets signal continuity transition processing, and generates a full-array intermediate frequency composite signal stream; amplitude weighting and time delay compensation are applied to the signal stream, and digital-to-analog conversion is performed to output a multi-channel synchronous intermediate frequency simulation signal; and the structural contradiction between the computing capacity and real-time requirement of the intermediate frequency signal simulation is effectively solved.

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