Design of test signals for identification of linear systems with nonlinear distortions

Author

Evans, D.C. ; Rees, David ; Jones, Douglas L.

Author_Institution

Dept. of Electron. & Inf. Technol., Glamorgan Univ., UK

Volume

41

Issue

6

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

768

Lastpage

774

Abstract

The design of nonbinary multifrequency excitation signals (multisines) for identifying linear systems in the presence of nonlinear distortions is examined. The use of such signals in parametric and nonparametric frequency-domain estimation is addressed, and a comparison with the maximum length binary sequence is made. The performance of a multisine composed of only prime harmonics is assessed for robustness to nonlinear effects. Practical results are presented, and guidelines for test signal design are outlined

Keywords

electric distortion; frequency-domain analysis; harmonic analysis; identification; linear systems; signal synthesis; spectral analysis; testing; design; frequency-domain estimation; identification of linear systems; maximum length binary sequence; multisines; nonbinary multifrequency excitation signals; nonlinear distortions; prime harmonics; robustness; test signals; Binary sequences; Guidelines; Linear systems; Modems; Nonlinear distortion; Robustness; Signal design; Signal processing; System testing; Time domain analysis;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.199395

Filename

199395