Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Applications of the Cepstral Method for Iridological Television System D.R. DZHAMALOV, G.G. GURBANOVA Improving the quality of television images is an important task of television technology. An important role in solving this problem is assigned to the methods and devices of aperture distortions. Aperture distortions of the image signal arise in photoelectric converters from the finite dimensions of the electron beam cross section, due to the inefficiency of charge transfer in solid-state image sensors on charge coupled devices (CCDs), due to aberrations in optical and electronic systems. The regularity of the trend in the development of television broadcasting technology is to improve the quality of the reproduced image. As you know, quality is understood as the degree of conformity of the image to the original. Aperture distortion leads to a decrease in the swing of the high-frequency signal components, i.e. blurring the sharp edges of large details (decreasing sharpness) and decreasing the contrast of small details (decreasing sharpness). Aperture distortion can be minimized using various aperture correctors. The known methods of aperture correction have a number of significant drawbacks that limit the possibility of their application in real operating conditions. In this regard, great attention is constantly paid to the issues of increasing the efficiency of aperture correction methods. It is known that when aperture correction is applied, the signal is delayed for a certain time and then added to the main signal. In this paper, the delayed signal is proposed to be processed by the cepstral method, which expands the dynamic range of the correcting signal and facilitates the determination of the delay, which is an important factor in the development of digital aperture correctors. Keywords: aperture correction, digital correction, linear and nonlinear correctors, kestral method, aperture, Gaussian aperture, exponential aperture, signal power cepstrum. DOI: 10.25791/pribor.9.2021.1289 Pp. 13-19.