BANDPASS NONLINEAR-SYSTEMS IDENTIFICATION BY HIGHER-ORDER CROSS-CORRELATION

被引：12

作者：

GIUNTA, G ^{[1
]}

JACOVITTI, G ^{[1
]}

NERI, A ^{[1
]}

机构：

[1] UNIV ROME,DEPT INFOCOM,I-00184 ROME,ITALY

来源：

IEEE TRANSACTIONS ON SIGNAL PROCESSING | 1991年 / 39卷 / 09期

关键词：

D O I：

10.1109/78.134443

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：

Nonlinear systems constituted by a zero-memory nonlinearity cascaded with linear filters can be identified by input-output cross correlation using a Gaussian input signal. The method is extended to complex systems through a pair of complex invariance theorems. The stated properties allow identifying the linear parts of systems characterized by magnitude/phase nonlinearities with the joint use of second-and third-order input-output moments. The suggested method can be employed for a wide class of communication bandpass circuits when signals are represented by complex envelopes.

引用

页码：2092 / 2095

页数：4

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