The Level of Impact Noise and Threshold Characteristics Nonlinear Assessment Signal Parameters

5th International Conference: Modern Technologies For Non-Destructive Testing

材料科学;物理学

Timoshenkova, Y.S.^1

Ural Federal University Named after the First President of Russia B.N.Yeltsin, Yekaterinburg, Russia^1

关键词: Analysis of signal;    Information signals;    Non-linear transformations;    Nonlinear signals;    Output characteristics;    Signal parameters;    Signal/noise ratio;    Threshold characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/189/1/012025/pdf
DOI  :  10.1088/1757-899X/189/1/012025

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

The article deals with the effect of noise which influences the system with simple signal formation, the output characteristics of the system. The system is further subject to nonlinear signal transformation. We received results and carried out analysis of signal/noise ratio at the output of the system with linear and non-linear release of the information signal parameters, such as amplitude, square amplitude, phase and double phase. We studied the effect of noise bandwidth of the linear part of the system and the noise bandwidth of the system after the nonlinear transformation on the signal/noise ratio at the output of the system. We analyzed thresholds valuations of signal/noise ratio at the input of the nonlinear part, limiting the area of noise signal suppression at its output.