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

Abstract

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.

Keywords

• protection of the speech signal
• information leakage channel
• interrelation time-frequency processing
• complex measurement signal