Volume 36 #3

Contents

1. Dependence of the results of the assessment of fusion reserves on the measurement method, tools and parameters of test stimuli
2. Ganglion cell regularity in the dolphin’s retina improves during
3. Influence of spectral componentsof dayly lighting on eye structures formation for japanese quail coturnix japonica
4. Mismatch between electrophysiological and behavioral measurements: example from auditory system of noctuid moths (Lepidoptera, Noctuidae)
5. Interaural forward masking in the auditory system of a dolphin
6. Radio-sensor technical diagnosis complex electronic assembly
7. Accuracy of the coordinates for underlying surface based on photogrammetric measurements of the images with an oblique projection
8. Simulation of signal repeator of radio pulses for radio-sensor authentication systems

The construction and analysis of parametric variations of the schemes of the program-numerical model of the signal repeater of ultrashort radio pulses was presented in this article, and the software-numerical emulation and algorithmization of the stroboscopic method for recording and processing radio images generated by a digital twin – an electrodynamic model of a probed object, represented by an aircraft-type drone. An electro-optical method is proposed for an alternative solution to the radio engineering problem of stroboscopic registration and recovery of ultrashort radio pulses of nanosecond duration with subnanosecond resolution, which constitute the radio image signature of irradiated objects for systems of radiosensor signal-tomographic authentication. In the Simulink environment, software models of infraoptic repeaters have been developed that make it possible to numerically analyze and investigate the effectiveness of the method of optical regeneration of radio pulses using a fractional multiplexing scheme with delayed feedback. A radio response from a digital twin of a target irradiated with a Gaussian ultrashort radio pulse was simulated in the Altair Feko electrodynamic simulation software environment. It is shown that an electro-optical repeater with sixteen delay lines in 20 iterations is capable of recovering a radio response from a target with a correlation coefficient of more than 0.9 between the reference and reconstructed pulses with a signal-to-noise ratio of at least 9 dB.

Key words: electro-optical repeater, USP-signal, recuperation, radio sensor system, radio image, impulse response

DOI: 10.31857/S0235009222030076

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