一种基于FFT IPcore的实时频谱处理方案  

A Real-time Frequency Spectrum Based on FFT Ipcore

作　　者：吴韬[1] 王健[1] 严俊[2] 

机构地区：[1]中国航空无线电电子研究所,上海200241 [2]海军驻上海地区航空军事代表室,上海200233

出　　处：《航空电子技术》2013年第3期39-42,共4页Avionics Technology

摘　　要：本文针对飞机地面电源车的电源品质中畸变频谱的大数据量和实时性特点提出了一种基于FFT IPcore的实时频谱处理方案。本方案以DFT蝶形变换为理论基础,在FPGA上通过对FFT IPcore的配置和配套逻辑的编写,实现了大数据量的实时频谱处理,并最终以Matlab仿真、XST仿真以及Chipscope实时数据对比验证了方案的正确性和实时性。Taking into consideration the big-data-size requirement in spectrum obtaining, this paper presents a real-time frequency spectrum processing scheme for the power character of aircraft power car. Based on DFT butterfly conversion, the scheme is implemented through configuration of FFT IPcore and its relative logic compiling, which realizes real-time frequency spectrum with big-data-size input. The whole scheme is verified by Matlab simulation, XST simulation and Chipscope

关 键 词：实时频谱 DFT蝶形变换 FFT IPCORE 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]