[1]王太君.复数滤波器概念的一个应用[J].东南大学学报(自然科学版),1983,13(3):56-63.[doi:10.3969/j.issn.1001-0505.1983.03.006]
 Wang Tau-jun.An Application of the Concept of Complex Digital Filters[J].Journal of Southeast University (Natural Science Edition),1983,13(3):56-63.[doi:10.3969/j.issn.1001-0505.1983.03.006]
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复数滤波器概念的一个应用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
13
期数:
1983年第3期
页码:
56-63
栏目:
本刊信息
出版日期:
1983-09-20

文章信息/Info

Title:
An Application of the Concept of Complex Digital Filters
作者:
王太君
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Author(s):
Wang Tau-jun
关键词:
复数滤波器 信号复包络 中心频率 数字滤波 复平面 窄带信号 频谱 运动矢量 占优势 概念
分类号:
+
DOI:
10.3969/j.issn.1001-0505.1983.03.006
摘要:
本文借助于复数滤波器概念,通过假想的数字滤波,推导出了窄带信号复包络中能量占优势的频谱成分的中心频率估算公式,揭示了这个中心频率与复平面上表示复包络的运动矢量之间所具有的相互关系。
Abstract:
In this paper, an approximate formula for estimating the central frequency of the spectral component whose energy is dominant in the complex envelope of a narrow-band signal is derived via imaginary digital filtering. The relationship between this central frequency and the moving vector on complex plane that expresses the complex envelope is also revealed.
更新日期/Last Update: 2013-05-01