A Time-frequency Domain Identification Algorithm for A Complex System Dynamic Characteristic Parameters

被引：0
|
作者：
Zhao, Jian [1 ]
Yu, Xinke [2 ]
Yu, Ming [1 ]
Yan, Xianguo [3 ]
机构：
[1] Tianjin Inst Urban Construct, Tianjin, Peoples R China
[2] Peking Univ, Sch Elect Engn & Comp Sci, Beijing, Peoples R China
[3] Taiyuan Univ sci & technol, Taiyuan, Peoples R China
来源：
2012 7TH INTERNATIONAL CONFERENCE ON SYSTEM OF SYSTEMS ENGINEERING (SOSE) | 2012年
关键词：
Time-Frequency Domain Identification Algorithm; Time-Frequency Image Ridges; Complex System; Dynamic Characteristic Parameters;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The time-frequency image ridges can carry much information of system characteristic parameters. The modal parameters can be identified by extracting these image ridges. A kind of wavelet transform identification method to identifying a complex system is presented by means of particle swarm optimization algorithm of the ridges extraction. This paper gives the formulas identifying natural frequencies from a wavelet ridge, and an example applied to the modal parameters identification of designed third-degree-of-freedom system. The results prove the method is precision and effective to a complex system.
引用
收藏
页码：34 / 37
页数：4
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