A Low-power 4K point FFT Processor for CMMB OFDM Receiver System

摘要：

This paper presents a 4096-point FFT processor for CMMB receiver system,in which dual-path pipelined shared memory architecture is employed In this design,an elaborated memory configuration schemes make single port RAM available,with efficient memory access.Moreover,a data reordering for data storage in the radix-8 calculation is designed. This design with small area can perform 4K point FFT at lower power dissipation.In addition,the signal-to-Quantization Noise Ratio (SQNR) of a 4K-poin fixed-point FFT can achieve 48.7B with the wordlength of 12 bit.

关键词： fast Fourier transform (FFT) CMMB Orthogonal frequency division multiplezing (OFDM) low power

作者: Simeng Li Hao Xiao Yun Chen Xiaoyang Zeng

作者单位: State Key Lab.of ASIC and System,Department of Microelectronics,Fudan University,Room 220,Rd Zhanghe State Key Lab.of ASIC and System,Department of Microelectronics,Fudan University,Shanghai,China

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 517-520

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）