O.V. Melnik, A.A. Mikheev, P.L. Shuvalov

The most accessible, safe and informative technical method of controlling the state of the cardiovascular system remains electrocardiography. Currently on the market electrocardiographic equipment devices are made by the same type of structures, providing a consistent pre-processing the signal. In this case, together with the elimination of interference, at each stage there is a loss of informative components of the elektrocardiosignal (ECS). Therefore, the actual task is to reduce loss of information and eliminate unwanted distortion at all stages of the automatic processing of ECS. Currently used filtering-based methods of pretreatment of ECS distorting the shape of the elements of pacing. Methods of eliminating drift contours based on spline interpolation and polynomial approximation can save the form of ECS elements, but they have a fundamental constraint on the maximum frequency in the spectrum addressed by the drift of the isolines. By solving the problem of eliminating ECS affect interference in condition of minimizing methodological distortions of the original signal is the principle of parallel processing, whereby the processing of ECS can be represented as several parallel processes, each of which solves its problem and are mutually com-plementary. Additional features for elektrocardiosignal processing opens its study at the TP segment. Selecting discrete ECS samples, TP segment owned, you can restore the continuous signals and interference-frequency drift contours and subtract them from the original signal. Shaping of the discrete samples of the mutual location and amplitudes of the samples which are defined by the relevant rules of formation of pulsed signals of complex form (PSCF), we can ensure that the suppression of such signals in the spectrum of a given number of spectral bands, while maintaining a zero spectral band, which contains the components of the isoline drift. The structure of the device eliminate interference, which implements the separate interference avoidance, which involves the suppression of drift and interference contours from the mains supply, isolated from a mixture of ECS and noise separately in different branches of the circuit. This structure is constructing a system of parallel elektrocardiosignal processing and based on its suppression techniques can reduce the distortion of the amplitude-time parameters of the original signal in comparison with known methods. Consideration of the principles of parallel processing make it possible to overcome the methodological limitations of the diagnostic value of electrocardiographic studies and more reliably detect changes in am-plitude and time parameters of the elektrocardiosignal.