局部流水FFT处理器地址产生和系数存储负载的设计（英文）

Address Generate and Coefficient Store-Load Design of LocallyPipeline FFT Processor

快速傅立叶变换(FFT)是数字信号处理中一种非常重要的算法,局部流水结构是一种实现嵌入式实时FFT处理器设计的有效结构.针对局部流水FFT处理器,主要推导了基于基16FFT第一地址生成公式的转换,并与我们提出的地址产生方法、操作数地址生成方法、系数存储负载策略及系数地址生成方法进行了对比分析.为有效解决局部流水结构FFT处理器的数据流控制问题提供参考.

FFT is a very important algorithm in digital signal processing.The locally pipeline architecture is an efficient structure to real-time embedded FFT processor designing.To the locally pipeline FFT processor,the transformation and address generating formula for radix-1 6 FFT is deduced.Finally the derived expressions are compared with the method we proposed for address generating,the operands address generating,coefficient store-load strategy and coefficient address generating.The problem of data stream control in locally pipeline architecture FFT processor is resolved commendably.