Fundamental Constraints on the Coherence of Probing Signals in the Problem of Maximizing the Resolution and Range in the Stroboscopic Range of Asteroids

Zakharchenko, V. D.; Kovalenko, I. G.; Pak, O. V.; Ryzhkov, V.

doi:10.1134/s0010952518030085

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…Mathematical model of radio pulse gating system is shown in the Fig.1. The stroboscopic converter of a periodical series of coherent radio pulses x(t) works like a super heterodyne receiver and the series of strobe pulses a(t) is using as a local oscillator signal [4,5]. Mathematical models of the input signal and the strobe signal are:…”

Section: Radio Pulse Stroboscopic Converter Synchronous Modementioning

confidence: 99%

Immunity of coherent stroboscopic processing system of ultra wideband signals during synchronous mode

Pak¹,

Zakharchenko

2019

ITM Web Conf.

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Analyze of the radio pulse stroboscopic schema work in “synchronous” mode was made at clock interval synchronization by the second harmonic of intermediate frequency. It’s introduced relationships describing the input radio signal’s amplitude relationship during the phase modulation transforming in time during work the converter in synchronous mode. The results of semi natural modeling of the radio pulse gating system qualitative agreement with theoretical calculations.

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Section: Radio Pulse Stroboscopic Converter Synchronous Modementioning

confidence: 99%

Immunity of coherent stroboscopic processing system of ultra wideband signals during synchronous mode

Pak¹,

Zakharchenko

2019

ITM Web Conf.

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Scheme features of radio pulse gating for radar measurements

Zakharchenko

Хоперсков

2019

ITM Web Conf.

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The model of a radio pulse stroboscopic converter consisting of a mixer and a narrowband filter tuned to the difference frequency of the carrier signals is considered. We demonstrate that the measurement of the phase structure of the input signals can be made at low frequency by amplitude methods by changing the phase both in the channel of the gating radio pulses and in the low frequency channel. The radio-pulse gating scheme goes into a phase-sensitive mode when the system clock frequency is synchronized with the second harmonic of the difference frequency, however, in this case, a parasitic phase modulation occurs in the converted signal, which does not depend on the transformation coefficient of the spectrum and is determined only by the duty cycle of the input signal. To eliminate parasitic modulation, which distorts the envelope of the output signal of the converter in a phase-sensitive mode, it is proposed to use an auto-shift circuit with a falling “slow” sawtooth voltage when generating gating radio pulses.

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Radio pulse Stroboscopic Transformation of Coherent Radio Signals in Conditions of Interference

Pak¹,

Zakharchenko

2019

2019 Radiation and Scattering of Electromagnetic Waves (RSEMW)

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Fundamental Constraints on the Coherence of Probing Signals in the Problem of Maximizing the Resolution and Range in the Stroboscopic Range of Asteroids

Cited by 3 publications

References 4 publications

Immunity of coherent stroboscopic processing system of ultra wideband signals during synchronous mode

Immunity of coherent stroboscopic processing system of ultra wideband signals during synchronous mode

Scheme features of radio pulse gating for radar measurements

Radio pulse Stroboscopic Transformation of Coherent Radio Signals in Conditions of Interference

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