It is shown that the estimation of nonlinear distortions in the various circuits based on the measurement of the ratio of the dispersion and correlation functions does not depend on the level of additive noise acting on the input (or output) of nonlinear circuit. The proposed theoretical method is confirmed by experimental measurements.
References
[1]
Bendat, J.S. (1990) Nonlinear System Analysis and Identification. John Wiley and Sons, New York, p. 350.
[2]
Wernholt, E. and Gunnarsson, S. (2006) Detection and Estimation of Nonlinear Distortions in Industrial Robots. Proceedings of the IEEE Instrumentation and Measurement Technology Conference Sorrento, Sorrento, 24-27 April 2006, 1913-1918. http://dx.doi.org/10.1109/imtc.2006.328310
[3]
Cherry, E.M. (2000) Estimates of Nonlinear Distortion in Feedback Amplifiers. JAES, 48, 299-313.
[4]
Widanage, W.D. and Schoukens, J. (2010) Assigning the Nonlinear Distortions of a Two-Input Single-Output System. Proceedings of the IMAC-XXVIII, Jacksonville, FL, 1-4 February 2010, 45-49.
[5]
Dobrucki, A. (2011) Nonlinear Distortions in Electroacoustic Devices. Archives of Acoustics, 36, 437-460.
http://dx.doi.org/10.2478/v10168-011-0031-y
[6]
Bakó, T.B. and Dabóczi, T. (2001) Reconstruction of Nonlinearly Distorted Signals with Regularized Inverse Characteristics. IEEE Transactions on Instrumentation and Measurement Technology Conference Budapest, Hungary, 21-23 May 2001, 78-85.
[7]
Lavrador, P.M., de Carvalho, N.B. and Pedro, J.C. (2004) Evaluation of Signal-to-Noise and Distortion Ratio Degradation in Nonlinear Systems. IEEE Transactions on Microwave Theory and Techniques, 52, 813-822.
http://dx.doi.org/10.1109/TMTT.2004.823543
[8]
Bernstein, S. (1946) The Theory of Probabilities. Gostechizdat, Moscow, p. 348.
[9]
Raibman, N. and Terekhin, A. (1965) Dispersion Methods of Random Functions and Their Application in Non Linear Controlling Systems. Automation and Remote Control, XXXYI, 500-509.
