摘要
相关干涉仪测向技术在工程中应用很广泛,但是庞大的计算量严重影响了测向响应时间。利用数字信号处理器(DSP)的并行流水编程技术和同步接口的直接存储器访问技术(DMA)可以较好的解决处理速度问题。介绍了基于汇编语言的并行流水编程和同步接口DMA两种关键技术,从相关度计算的并行流水编程和DMA方式导入样本相位差两方面论述了快速实现方法的步骤,对该方案的处理速度进行了分析。
The correlation interferometer algorithm is widely applied to practice. Using parallelpipeline programming and DMA of synchronization interface based on DSP, the processing speed can be improved. Above all, the technical characteristics of this algorithm and hardware platform structure are introduced in this paper. And then, the kernel technology is described briefly. Also, the main realization of algorithm is elaborated. Finally, the time-spending of independent segment is analyzed and compared with other schemes.
出处
《无线电工程》
2011年第8期47-50,共4页
Radio Engineering
