VECTOR-CHANNEL LATTICE FILTERS AND IDENTIFICATION OF FLEXIBLE STRUCTURES

被引:17
作者
JABBARI, F [1 ]
GIBSON, JS [1 ]
机构
[1] UNIV CALIF LOS ANGELES,DEPT MECH AEROSP & NUCL ENGN,LOS ANGELES,CA 90024
关键词
SYSTEMS SCIENCE AND CYBERNETICS - Identification - VIBRATIONS - Control;
D O I
10.1109/9.1223
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
A novel derivation of a least-squares lattice filter is presented and applied to the identification of flexible structures. The vector-channel lattice given, derived in an infinite-dimensional history space, without matrix manipulations or geometric arguments, can constrain the autoregressive (AR) coefficients for several outputs to be the same. Numerical results for a simulated flexible structure compare the vector-channel lattice to the standard lattice filter. These results show that the frequencies and damping ratios for the most significant modes can be identified adaptively with lattice filters.
引用
收藏
页码:448 / 456
页数:9
相关论文
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