The investigation of methods and the development of devices of noise suppression in the perspective television systems

The object of investigation: the methods and devices of the noise suppression in the systems of television of high quality and high clearness. The work is aimed at studying the characteristics of distribution over the videospectre and at the development of the effective methods and devices of noise suppression consisting noise in the display signal of the perspective television systems. The relationships for the two-dimensional distribution of noise over the information space of the raster with the effect of pulsation-adaptation of the beam aperture accounted for have been obtained. Suggested have been the methods of noise suppression of the display signal and the device on its base. The method with the consecutive stepped noise suppression over the frequence range has been suggested and experimentally studied. One stage of the signal processing using the method with the consecutive stepped noise suppression over the frequency range has been realized, which has given the advantage with respect to the noise signal by 4 dB. The effective model of the device with the consecutive stepped noise suppression over the frequency range has been introduced in practice. The suggested technical solutions and theoretical recommendations have allowed to design the devices exceeding the early developed ones by the main technical and operational parameters. The field of application: the transmitting and receiving ducts of the television systemsAvailable from VNTIC / VNTIC - Scientific & Technical Information Centre of RussiaSIGLERURussian Federatio