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논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2009.8
- 수록면
- 4,503 - 4,507 (5page)
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초록· 키워드
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A new nonlinear filtered-x algorithm is proposed for adaptive feed forward compensation for parallel Ham-merstein systems, which has many applications such as nonlinear active no is econtrol and predistortion for nonlinear high power amplifiers. To attenuate the compensation error, a virtual error and prediction error are introduced and forced into zero by adjusting three nonlinear adaptive filter sin a non-line manner. It is shown that the convergence of the compen-sation error to zero can be assured by forcing the prediction error and virtual error to zero separately. The proposed method can adjust the adaptive feed forward controller by using the newly introduced virtual error, unlike the or dinary nonlinear filtered-x algorithm using the compensation error directly. Further more, the PE property of the reference signal is not needed, which is agreat advantage of the proposed direct approach. Its effectiveness is examined and clarified incomparison with an ordinary nonlinear filtered-x algorithm in numerical simulations.
목차
Abstract
1.INTRODUCTION
2.NONLINEAR ADAPTIVE FEEDFORWARD COMPENSATION PROBLEM
4.CONVERGENCEP ROPERTY
5.SIMULATION RESULTS
REFERENCES
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