Nonlinear distortions and multisine signals - Part I: Measuring the best linear approximation

被引：48

作者：

Evans, C ^{[1
]}

Rees, D ^{[1
]}

机构：

[1] Univ Glamorgan, Sch Elect, Pontypridd CF37 1DL, M Glam, Wales

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 2000年 / 49卷 / 03期

关键词：

frequency-domain analysis; linear systems; multisine signals; nonlinear systems; signal processing; system identification;

D O I：

10.1109/19.850402

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：

This paper examines the effects of nonlinearities on frequency response function measurements using periodic multifrequency signals. A class of broad-band pilot test signals is proposed, termed sparse odd multisines, which can be used to establish the system bandwidth and detect nonlinearities, Signals are then defined within this class which allow the measurement of the best linear approximation of a nonlinear system. A comparison is made with related work in this area.

引用

页码：602 / 609

页数：8

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