A Radar Synchronous Data Flow Graph Model Scheduling Sequence Generation Method

Abstract

The invention discloses a method for generating a scheduling sequence of a radar synchronous data flow graph model, including creating a radar synchronous data flow graph XML model file stream pointer, reading the XML model file, and extracting graph nodes and directed edges in the synchronous data flow graph model The original information of the memory mapping model is constructed, and the scheduling sequence of the synchronous data flow graph model is calculated according to the memory mapping model. The present invention uses XML model files to describe the radar synchronous data flow diagram, and extracts information and memory mapping of the synchronous data flow diagram XML model file, solves the model scheduling execution sequence through the synchronous data flow diagram model scheduling sequence calculation method, and finally automatically generates synchronous data The flow graph model scheduler C / C++ code, on the one hand, solves the scheduling sequence of the radar synchronous data flow graph model, and on the other hand, realizes the function of automatically converting the radar synchronous data flow model file to generate the model scheduler code, which can greatly reduce the research The coding workload of personnel is reduced, thereby improving the efficiency of radar simulation.

Description

technical field [0001] The invention belongs to the technical field of radar system simulation, and in particular relates to a method for generating a scheduling sequence of a radar synchronous data flow graph model. Background technique [0002] Using the Synchronous Data Flow Graph Model (SDFGM) to describe the model composition of a simulation system and the existing data inflow / outflow relationship, it has the advantages of expressive system structure, strong intuition, model scheduling order can be determined in advance, and program deadlock The advantages of pre-run detection are very useful for visual modeling and rapid construction of simulation system prototypes by combining model components. As a data-driven model simulation technology, the synchronous data flow calculation model has been widely used in DSP application calculation aided design systems, such as: Signal Processing Work System (Signal Processing WorkSystem, SPW) of Cadence Corporation of the United St...

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Problems solved by technology

The environment provides a component-based information flow interaction model definition, and drives simulation with periodic state data and discrete events. Strictly speaking, this is a discrete event-driven simulation technology, which is suitable for describing coarse-grained components composed of single-level structures The simulation model of , cannot be used for the complex system model with hierarchical structure

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