Kalistratov Dmitriy Sergeevich (Candidate of Technical Sciences,
Independent researcher, Tula
)
Mitrofanov Dmitriy Gennadievich (Doctor of Technical Sciences, Professor,
Military Academy of Military AD
of the Armed Forces of the RF
named after Marshal of the Soviet Union
A.M. Vasilevsky, Smolensk
)
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The problem of determining the signal-to-noise ratio by the complex envelope method is considered. The mathematical apparatus of the method is analyzed. The general principles of analog and digital radio signal modulation are revealed, and their mathematical representation is presented. The differences in the application of the complex envelope method in relation to signals with analog and digital modulation are indicated. The structural schemes of digital modulators are presented, and their brief description is given. Expressions for finding the amplitudes of modulated digital signals are specified. The features of the application of the complex envelope method for radio communication systems with amplitude, frequency and phase digital signal modulation are revealed. Recommendations are given regarding the measurement of the signal-to-noise level in digitally modulated signals.
Keywords:wireless communication system, radio signal, digital modulation, signal-to-noise ratio, complex envelope method.
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Read the full article …
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Citation link:
Kalistratov D. S., Mitrofanov D. G. FEATURES OF DETERMINING THE SIGNAL-TO-NOISE RATIO IN RADIO COMMUNICATION SYSTEMS WITH DIGITAL SIGNAL MODULATION BY THE COMPLEX ENVELOPE METHOD // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2025. -№08. -С. 58-63 DOI 10.37882/2223-2966.2025.08.12 |
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