基于窗函数下频谱泄露的研究  

Research of spectrum leakage with window function

作　　者：张斌[1] 孔敏[1] 吴从兵[1] 

机构地区：[1]皖西学院,安徽六安237012

出　　处：《信息化纵横》2009年第11期10-12,共3页

摘　　要：阐述了现代信号处理的具体过程,分析了在频域中对信号进行频谱分析时产生频谱泄漏现象的原因。在分析研究传统的减小频谱泄露所采取的手段的基础上,进一步提出了如何通过合适窗函数的选择以减小频谱泄露对信号分析的影响,探讨了提高频谱分析质量的方法,并给出了相应的Matlab仿真结果。This article elaborates the concrete process of mondern singnal processing, andanalyzes the causes of spectrnm divulging phenomenon which carries on the spectral analysis of singnal processing in the frequency domain. And based on the analysis of traditional approaches to reducing the spectrum leakage, the author finishes a further resear on how to choose the appropriate window function to cut down the leakage during the signal processing, and discusses how to improve the quality of spectrum analysis, and finally presents the corresponding Matlab simulation result.

关 键 词：窗函数 频谱泄露 频谱分析 

分 类 号：TN911.6[电子电信—通信与信息系统]