基于FPGA的信号频谱分析系统

利用FPGA实现了信号的采集与频谱分析系统,对系统进行了模块划分,并分别给出了各模块的设计要点,完成了模拟信号采集模块、快速傅里叶变换模块、存储模块以及VGA显示模块的设计。最后对设计的各模块进行了功能与时序仿真,验证了系统设计的正确性与可靠性。试验表明,该设计可以实现信号的采集、频谱分析与显示等功能,系统稳定可靠。

Design of Spectrum Analyzer Based on FPGA

This paper introduces a signal acquisition and spectrum analysis system based on FPGA.First the system is divided into several modules,and then the key design points of each module are given,and the Analog to Digital Change(A/DC) module,the Fast Fourier Transform(FFT) module,the memory module and the Video Graphics Array(VGA) module are designed.Lastly both functional simulation and timing simulation are completed so that the design of these modules is validated.According to the experiment,the implement can realize the signal acquisition,spectrum analysis and display functions.The system is stable and reliable.