利用傅里叶变换的干扰信号分析  

Analysis of interference signal based on fourier transform method

作　　者：衣春波[1] 孙晓玲[1] 

机构地区：[1]西南交通大学电气工程学院,四川成都610031

出　　处：《中国测试技术》2005年第2期38-39,共2页CHINA MEASUREMENT & TESTING TECHNOLOGY

摘　　要：本文采用傅里叶变换对干扰信号进行了分析。首先讨论了正弦干扰信号和脉冲干扰信号的传统计算模式,然后采用傅里叶变换方法对脉冲干扰信号进行分解。最后对两种分析方法进行了综合比较。结果表明采用傅里叶变换可以扩大分析的频率范围。In this paper, the interference signal is analyzed using Fourier transform. Firstly, the traditional computation method of interference signal is discussed, and then the Fourier transform method is detailed described and used to analyze the interference signal.Lastly, the Fourier transform approach is compared with the traditional method.The results show that the Fourier transform method has good performance with the big range of frequency analysis and high precision.

关 键 词：傅里叶变换 干扰 信号分析 频谱 

分 类 号：TN971.1[电子电信—信号与信息处理]