Abstract:

Aiming at the demand for real-time processing, the parallel programming method and scheduling stratagem of a sonar system is discussed. A design pattern, which considers the parallel design, scheduling and mapping comprehensively, is constructed from the characteristics of the sonar processing system, such as distributed function, partition in layer and pulsating data flow. First, decomposing in layer, then the system is described by using the directed acyclic graph. Second, the network programming technique is used to build the mathematical model. Then, the entire system is reshaped from low layer to high layer, the system’s operation and stratagem is implemented in accordance with scheduling in big granularity, mapping in small granularity and execution in parallel flow. In this pattern an instance is designed. The result shows that it is efficient.