理想滤波器距因果滤波器有多远?
经典分析与常微分方程
2015-02-27 v1
摘要
本文利用将有限能量信号映射为有界信号的滤波器作为卷积算子的刻画,证明了关于理想滤波器与物理可实现滤波器空间之间距离的若干理论结果。研究了模拟与数字两种情况,并给出了每种情况下滤波器间距离与角度的公式。
引用
@article{arxiv.1502.07650,
title = {How distant is the ideal filter of being a causal one?},
author = {J. M. Almira and A. E. Romero},
journal= {arXiv preprint arXiv:1502.07650},
year = {2015}
}
备注
10 pages. Key words and phrases: Filters, Shift Invariant Operators, Applications of Fourier Analysis, History of Mathematics