一种基于FFT IPcore的实时频谱处理方案

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