Synthesis and analysis of discriminators under influence of broadband non-Gaussian noise

• Published in: Journal of physics. Conference series Vol. 944; no. 1; pp. 12004 - 12011
• Main Authors: Artyushenko, V M, Volovach, V I
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.01.2018
• Subjects: Broadband; Discriminators; Fisher information; Noise; Physics; Probability density functions; Random noise; Synthesis; Transformations
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/944/1/012004

We considered the problems of the synthesis and analysis of discriminators, when the useful signal is exposed to non-Gaussian additive broadband noise. It is shown that in this case, the discriminator of the tracking meter should contain the nonlinear transformation unit, the characteristics of which are determined by the Fisher information relative to the probability density function of the mixture of non-Gaussian broadband noise and mismatch errors. The parameters of the discriminatory and phase characteristics of the discriminators working under the above conditions are obtained. It is shown that the efficiency of non-linear processing depends on the ratio of power of FM noise to the power of Gaussian noise. The analysis of the information loss of signal transformation caused by the linear section of discriminatory characteristics of the unit of nonlinear transformations of the discriminator is carried out. It is shown that the average slope of the nonlinear transformation characteristic is determined by the Fisher information relative to the probability density function of the mixture of non-Gaussian noise and mismatch errors.