D.V. Belyaev

«Taganrog Scientific Research Institute of Communications» (Taganrog, Rostov Region, Russia)

In recent decades, radio electronics has been rapidly developing, new technologies in the field of microelectronics are emerging, new digital logic circuits, analog-to-digital converters, and microprocessors are being created, which leads to the emergence of new and increasing the number of radar and radio navigation systems used, and an increase in the number of transmitting communication stations. Modern systems follow the path of increasing the dynamic and frequency ranges, increasing the number and types of signals used, and mastering the nano- and picosecond ranges. These achievements are based on new methods of digital signal processing, the use of the latest products of semiconductor technology. All this makes it possible to create high-speed elements, precision analog devices and computer equipment, which have opened up wide opportunities for the implementation of new ideas in the construction of equipment.

In this regard, the problem of significant improvement of the parameters of the radio-technical situation lighting systems (RTO), radio monitoring of the radio-technical situation, necessary for the successful detection and classification of modern radio sources, becomes urgent.

The purpose of this work is a mathematical analysis of the random error of measuring the pulse duration with oscillations at the top and cross-section by multi-threshold duration meters.

The main parameters used to identify a radio-electronic device are the repetition period, duration, arrival time, and carrier frequency. Means of lighting the radio environment should have the widest possible frequency range, dynamic range, greater accuracy in determining the primary parameters of the signals (repetition period, duration, frequency, amplitude), greater spatial and temporal selectivity, short time to make a decision on detection, commensurate with the processing time of a single pulse, high reliability and processing speed.

The principle of operation of a multi-threshold meter consists in multi-threshold fixation of the input signal level and the formation of a normalized pulse for further filling it with counting pulses. The quantization step is usually chosen to be uniform on the logarithmic scale. The front and cross-section of the generated normalized pulses are determined by the algorithm of operation of the multithreshold meter in a specific situation. True duration refers to the duration of the pulse at the level of half the amplitude.

Belyaev D.V. Systematic error in measuring the pulse duration with oscillations at the top by multi-threshold duration meters. Radioengineering. 2021. V. 86. № 11. P. 88−94. DOI: https://doi.org/10.18127/j00338486-202111-14 (in Russian)

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