FEATURES OF DISTORTION OF THE SPECTRUM OF INFORMATION SIGNALS AT DIFFRACTION ON HOLES

Informatics, Samara, e-mail: gag646@yandex.ru Wave diffraction leads to the redistribution of wave energy in space, depending on the wavelength and to the spectral distortion of information signals, especially broadband signals, which should be taken into account when creating acoustic devices. The paper considers the effect of diffraction on the distortion of the spectrum of acoustic information signals arising from the dependence of the intensity distribution on the wavelength of the incident radiation. The dependence of the wave intensity distribution on the diffraction angle and on the wavelength of incident radiation is calculated. It is shown that the signal spectrum is preserved only opposite the diffraction hole. It is determined that when the diffraction angle changes, the light intensity changes along the wavelengths. The critical wavelengths and frequencies depending on the diffraction angle are determined, at which the radiation intensity is zero and the greatest distortion of information signals is observed. It is established that the increase in the number of holes leads to an increase in the signal level, but the degree of distortion of the signal will increase. With increasing diffraction angle and hole width, the distance between adjacent frequencies with minimal wave intensity increases. The signal distortion increases with increasing diffraction angle, width