ASSESSMENT WITH HIGH PRECISION OF MEASUREMENT SIGNAL PARAMETERS USING COMPENSATION OF ITS TIME DELAY IN LEAKAGE CHANNELS OF SPEECH INFORMAYTION

• Main Authors: V. K. Zheleznyak, I. B. Burachonak
• Format: Article
• Language: Russian
• Published: Educational institution «Belarusian State University of Informatics and Radioelectronics» 2019-06-01
• Series: Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki
• Subjects: protection of the speech signal; information leakage channel; interrelation time-frequency processing; complex measurement signal
• Online Access: https://doklady.bsuir.by/jour/article/view/686

This paper proposes to make an assessment of speech signal protection in information leakage channel by frequency-time processing of complex measurement signal with a large base within a band equal intelligibility using Hilbert transform to represent it in an analytical form and preliminary reduction of the detection threshold n-multiples sequential synchronous accumulation of spectral components using direct and inverse fast Fourier transform. High accuracy and sensitivity assessment of the parameters of a complex measurement signal with a large base in information leakage channel on background high level of noise achieved by compensating with a minimum mean square error its time delay and frequency offset.