计算机与数字工程2018，Vol.46Issue(5)：870-873,884,5.DOI:10.3969/j.issn.1672-9722.2018.05.005
基于Rife算法的跳频信号瞬时频率估计算法研究
An Improved Rife Algorithm of Frequency Estimation for Frequency-Hopping Signal
孙微涛 1张志宝 1罗文峰 1汪帆1
作者信息
- 1. 中国人民解放军63788部队 渭南714000
- 折叠
摘要
Abstract
This paper analysises the performance of Rife algorithm and points out that the performance is poor when the true frequency is much close to quantized frequency of FFT.Aiming at this problem,an improved Rife algorithm is presented.This algo-rithm can make the signal frequency always located in the center between the two neighboring discrete frequencies by using zoom FFT technique. Then,in order to elminate the impact of nosie for the Rife algorithm,this paper proposes to correct the improved Rife algorithm by using the window function for the signal.Simulation result shows that the improved algorithm has high estimation accuracy,strong anti-noise performance and good stability.关键词
Rife算法/改进Rife算法/频谱细化/频率估计/跳频信号Key words
Rife algorithm/improved Rife algorithm/zoom FFT/frequency estimation/frequency hopping signal分类
信息技术与安全科学引用本文复制引用
孙微涛,张志宝,罗文峰,汪帆..基于Rife算法的跳频信号瞬时频率估计算法研究[J].计算机与数字工程,2018,46(5):870-873,884,5.
