FORM-UNSUSTAINABLE ELECTRODYNAMICS OF DISTRIBUTION OF ELECTRIC FIELDS OF SUBNANOSECOND SIGNALS IN INHOMOGENEOUS MEDIA

Abstract

The results of program-numerical studies of the features of the change in the electrodynamic characteristics of subnanosecond signals during their propagation in inhomogeneous media are presented: in reflection from an ideally conducting surface and propagation through a dielectric. The features of the form-time and spectral transformation of the electric field strength distribution of Gaussian ultrashort impulse signals without carrier frequency filling during their propagation, reflection and absorption are shown. A method of quasioptimal detection of such radio pulses is proposed taking into account their form-time and spectral transformation. Analysis of electrodynamic processes affecting the form-stable change in ultrashort radio pulses in inhomogeneous media has shown results: a change in the angle of inclination of the reflecting surface affects the redistribution of the electric field strength of the reflected wave; It is established that the Gaussian radio pulse, in contrast to the Gaussian, undergoes a slight change in the electric field profile as it passes through the dielectric, due to the effect of dielectric losses in the high-frequency region. The mechanism of the spectroscopic transformation of the distribution of the electric field strength of Gaussian radio pulses makes it possible to judge the possibility of using subnanosecond pulses in radiovision problems.

Keywords

• subnanosecond radio pulse
• gaussian model
• current electric field transformation
• electric tension
• inhomogeneous medium
• effective scattering area
• conductive surface
• dielectric
• quasioptimal detection