Design and realization of DFT spectrum analysis system based on FPGA

CHEN Zhi-kun1; LI Sheng1; CHEN Tao2; WANG Fu-bin3; SUN Xiao-lei4

doi:10.13873/j.1000-97872010.08.019

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Design and realization of DFT spectrum analysis system based on FPGA

更新时间：2025-09-11

- Design and realization of DFT spectrum analysis system based on FPGA
- Vol. 29, Issue 8, Pages: 113-116(2010)
- 作者机构：
  
  1. 河北理工大学计算机与自动控制学院
  2. 天津市德力电子仪器有限公司
  3. 东北大学机械工程与自动化学院
  4. 天津大学电信学院
- 作者简介：
- 基金信息：
- DOI：10.13873/j.1000-97872010.08.019
  CLC： TN791;TM935.21
- Published：2010
- 稿件说明：
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[1]陈至坤,李胜,陈韬,王福斌,孙晓磊.DFT频谱分析系统的FPGA设计与实现[J].传感器与微系统,2010,29(08):113-116.

CHEN Zhi-kun1, LI Sheng1, CHEN Tao2, et al. Design and realization of DFT spectrum analysis system based on FPGA[J]. 2010, 29(8): 113-116.
[1]陈至坤,李胜,陈韬,王福斌,孙晓磊.DFT频谱分析系统的FPGA设计与实现[J].传感器与微系统,2010,29(08):113-116. DOI： 10.13873/j.1000-97872010.08.019.

CHEN Zhi-kun1, LI Sheng1, CHEN Tao2, et al. Design and realization of DFT spectrum analysis system based on FPGA[J]. 2010, 29(8): 113-116. DOI： 10.13873/j.1000-97872010.08.019.

摘要

设计与实现了一种基于FPGA的DFT频谱分析系统。系统对16384点采样数据进行处理

信号频谱分辨率带宽RBW达到30 kHz。相同条件下

与FFT快速频谱算法相比

采用DFT设计占用芯片资源少

降低了设计成本。设计中采用NCO IP Core实时计算正弦和余弦样本

而不需要样本存储器

节省了ROM资源。同时

系统采用流水线工作方式

每场数据处理时间为22 ms

保证了系统的处理速度

实时性较好。本系统已成功应用于实际工程之中。

Abstract

A discrete Fourier transform（DFT） spectrum analysis system based on field programmable gate arrays（FPGA）has been designed and realized.This system deal with 16384 points sampled data

signal spectral RBW reach to 30KHz.Compared with the FFT

DFT algorithm occupies less chip resources and reduces design cost.In the design

a NCO IP Core is used to calculate the Sin and Cos Samples instead of samples memory.The entire design adopts pipeline architecture to ensure the system’s speed and reduce the waste of time

processing time is 22ms.The system has been successfully used in practical engineering.

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references

频谱分析仪全数字中频设计研究与实现 [J]. 刘祖深. 电子测量与仪器学报 . 2009(02)

基于IP核的FPGA FFT算法模块的设计与实现 [J]. 窦秀梅,赵振纲. 无线电工程 . 2008(08)

NCO的研究及其FPGA实现 [J]. 陈绍宽,李明. 仪表技术 . 2006(05)

一种基于FPGA的DFT算法实现的研究 [J]. 陈永东. 遥测遥控 . 2005(04)

浅析数字下变频中的NCO [J]. 何水艳. 高等函授学报(自然科学版) . 2004(01)

DFT与FFT在实际应用时的性能比较 [J]. 邱宽民,赵胜凯. 北方交通大学学报 . 2000(05)

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