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空时自适应处理(STAP)是新一代机载信号处理机的关键技术之一,它对系统的实时性有严格的要求。在分析实时STAP性能需求的基础上,利用基于TS201的高性能数字信号处理板,实现了一个STAP并行处理系统。结合STAP处理特点和系统体系结构,提出了一个局部串行全局并行的系统算法模型,并在模型实现中采用了高效的通信与同步方法。该模型有效的增强了系统的负载平衡特性。实测结果表明,系统满足STAP处理实时要求,并且有很好的可扩展特性。
Space-time Adaptive Processing (STAP) is one of the key technologies of the new generation of airborne signal processors. It has strict requirements on the real-time performance of the system. Based on the analysis of the real-time STAP performance requirements, an STAP parallel processing system is implemented by using TS201-based high-performance digital signal processing board. Combined STAP processing characteristics and system architecture, a local serial global parallel system algorithm model is proposed, and an efficient communication and synchronization method is adopted in the model implementation. The model effectively enhances the system’s load balancing characteristics. The measured results show that the system meets the STAP processing real-time requirements, and has good scalability.