Application of differencing to frequency domain parameter estimation algorithms

被引：0
|
作者：
Dahling, TM [1 ]
Allemang, RJ [1 ]
Phillips, AW [1 ]
机构：
[1] Orbital Sci Corp, Chandler, AZ 85248 USA
来源：
IMAC - PROCEEDINGS OF THE 17TH INTERNATIONAL MODAL ANALYSIS CONFERENCE, VOLS I AND II | 1999年 / 3727卷
关键词：
D O I：
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中图分类号：
V [航空、航天];
学科分类号：
08 ; 0825 ;
摘要：
The application of a difference technique to multireference frequency domain parameter estimation algorithms is investigated. The primary focus for this investigation is on varying order rational fraction polynomials. The basis of the application is that by differencing the standard equations, the numerator terms (beta's) are eliminated, thus decreasing system matrix sizes and therefore decreasing solution times, in most cases dramatically. The comparison to current UMPA models is presented along with the difference formulation and application to multi-reference data sets.
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页码：833 / 839
页数：7
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