| 数字包络的实现 |
| |
| 引用本文： | 张晓颖,马书林. 数字包络的实现[J]. 长春理工大学学报(自然科学版), 2008, 31(2): 118-120 |
| |
| 作者姓名： | 张晓颖 马书林 |
| |
| 作者单位： | 长春理工大学生命科学学院,长春,130022;长春理工大学生命科学学院,长春,130022 |
| |
| 基金项目： | 长春理工大学研究生科研基金 |
| |
| 摘 要： | 采用Hilbert变换法提取信号的包络.Hilbert变换而得的解析信号实部为信号本身,虚部为其Hilbea变换,解析信号的幅值即为信号的包络.Hilbert法解调出的包络是对信号绝对值的包络,其解调幅值代表真实包络.
|
| 关 键 词： | Hilbert变换 包络 解析信号 |
| 文章编号： | 1672-9870(2008)02-0118-03 |
| 修稿时间： | 2007-12-20 |
The Implementation of Number Envelope |
| |
| ZHANG Xiaoying,MA Shulin. The Implementation of Number Envelope[J]. Journal of Changchun University of Science and Technology, 2008, 31(2): 118-120 |
| |
| Authors: | ZHANG Xiaoying MA Shulin |
| |
| Affiliation: | ZHANG Xiaoying,MA Shulin(School of Life Science,Changchun University of Science , Technology,Changchun 130022) |
| |
| Abstract: | In this paper,the envelope of signal is extracted by Hilbert transform.The real part of analytic signal,which gotten by the Hilbert transform is itself.The imaginary part is its Hilbert transformation,and the amplitude is signal envel-ope.The envelope demodulated by Hilbert method is the envelope of signal absolute value,its demodulated amplitude re-presents the real envelope. |
| |
| Keywords: | Hilbert transformation envelope analytic signal |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
