摘要： 面向多输入多输出(MIMO)正交频分复用(OFDM)系统，设计一种可配置的FFT/IFFT运算处理器。给出多通路流水线FFT/IFFT处理器架构，通过一个输入数据重排模块，实现来自4条信道的多通路数据同时计算，支持不同数据率的FFT/IFFT运算。性能分析表明，在SMIC 0.13 μm工艺下，该处理器的最高时钟频率可达125 MHz，面积达到1.800×1.500 μm2。

关键词: 快速傅里叶变换, 流水线结构, 多输入多输出, 正交频分复用

Abstract: This paper presents a configurable FFT/IFFT processor oriented to Multiple Input Multiple Output(MIMO) Orthogonal Frequency Division Multiplexing(OFDM). It gives the pipelined architecture, introduces one data reordering module to deal with 4 multiple data sequences, with different rate. Performance analysis shows that the processor is designed in SMIC 0.13 μm technology with the core size of 1.800×1.500 μm2.

Key words: Fast Fourier Transform(FFT), pipeline architecture, Multiple Input Multiple Output(MIMO), Orthogonal Frequency Division Multiplexing(OFDM)

中图分类号: 

• TP303