摘要
基于信号样本可以重建信号频谱包络,本文提出一种简单、实用的内插方法,将此方法的有效性和FFT的优越性结合起来应用于细化频率分辨率,以适应需要获取信号较多频谱信息的应用场合。
Based on the sampling theorem that the spectral envelope of signal can be reconstructed from its data samples, a simple and practical interpolation is proposed in this paper, and the effectiveness of it along with the superiority of FFT is suitable for the zoom of frequency resolution, specially for the cases that acquisition of more spectral information of signal from data samples is needed.
出处
《数据采集与处理》
CSCD
1993年第2期123-127,共5页
Journal of Data Acquisition and Processing
关键词
信息处理
频谱分析
傅里叶变换
signal processing, spectral analysis, data processing, Fast Fourier Transformation
