摘要
详细讨论了在数字信号处理中加窗的影响。其一是使谱估计质量变差;其二是在数字滤波器设计时产生了Gibbs现象。还给出了窗函数的选择原则。
In this paper discussed the influence of window-adding in detail. Firstly, it causes the deterioration of the quality of spectral estimation. Secondly, it brings the Gibbs phenomenon in designing digital filter. The paper gave forward the principle of selecting window-function as well.
关键词
数字信号
窗函数
谱估计
数字滤波器
digital signal
window function
spectral estimation
digital filter
