现代信息科技2025，Vol.9Issue(7)：9-13,5.DOI:10.19850/j.cnki.2096-4706.2025.07.003
基于时域插值的小脉宽信号高精度测频方法
High Precision Frequency Measurement Method of Small Pulse Width Signal Based on Time Domain Interpolation
王敏杰 1蒋红梅 1黄鹏 1汪淑贤1
作者信息
- 1. 桂林信息科技学院,广西 桂林 541004
- 折叠
摘要
Abstract
Aiming at the problem of frequency measurement accuracy of small pulse width signal in low Signal-to-Noise Ratio environment,this paper proposes the FFT high-precision frequency measurement method based on time domain interpolation and Jacobsen algorithm.Through simulation analysis,the effects of different interpolation methods,different Signal-to-Noise Ratio,and different FFT points on frequency measurement accuracy are studied.The results show that compared with the traditional Jacobsen algorithm,this method further improves the frequency measurement accuracy and exhibits strong anti-noise performance.In addition,the method is verified on the Xilinx FPGA platform,which proves its engineering feasibility and accuracy.Due to the small amount of calculation,the method is easy to realize real-time processing and has a good prospect of engineering application.The research results provide an effective solution for the frequency measurement of small pulse width signals in digital receivers.关键词
小脉宽/FFT频率测量/Jacobsen/时域插值Key words
small pulse width/FFT frequency measurement/Jacobsen/time domain interpolation分类
电子信息工程引用本文复制引用
王敏杰,蒋红梅,黄鹏,汪淑贤..基于时域插值的小脉宽信号高精度测频方法[J].现代信息科技,2025,9(7):9-13,5.
