1M点FFT算法的FPGA设计与实现

FPGA Design and Implementation of 1M Points FFT Algorithm

采用可编程门阵列(FPGA)实现FFT算法,增加了信号处理的实时性。针对高速宽带信号的谱分析,提出了一种采用FPGA计算1M点FFT的实现方法,并对运算结果进行了测试验证。该成果同样适用于窄带信号的细微特征分析。

Adopting field-programmable gate array（FPGA） to implement the fast Fourier transform （FFT） algorithm may increase the real-time responsibility of signal processing. Aiming at the spectrum analysis of high velocity wideband signal,this paper presents a kind of realization method to calculate the FFT of the 1M points using FPGA,and tests ＆ validates the calculation result. The harvest is also suitable for the analysis of the fine characteristics of the narrowband signals.