Enhancing Noise Immunity in OFDM Communication Channels with Two-Stage Strobing and I /Q Demodulation

The article presents an innovative approach to increasing the number of digital samples in analog-to-digital systems using a strobing method in a “sliding-window” mode. Particular attention is paid to optimizing the in-phase/quadrature demodulation for signals with orthogonal frequency division mult...

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Veröffentlicht in:	Cybernetics and systems analysis 2024-07, Vol.60 (4), p.667-682
Hauptverfasser:	Slyusar, V., Bihun, N.
Format:	Artikel
Sprache:	eng
Schlagworte:	Artificial Intelligence Control Demodulation Demodulators Digital systems Frequency response Mathematics Mathematics and Statistics Orthogonal Frequency Division Multiplexing Processor Architectures Quadratures Sidelobe reduction Sidelobes Software Engineering/Programming and Operating Systems Systems Theory
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Zusammenfassung:	The article presents an innovative approach to increasing the number of digital samples in analog-to-digital systems using a strobing method in a “sliding-window” mode. Particular attention is paid to optimizing the in-phase/quadrature demodulation for signals with orthogonal frequency division multiplexing. The study analyzes the amplitude-frequency characteristics of the latest I/Q demodulators, demonstrating a reduction in the side lobes of the frequency response.
ISSN:	1060-0396 1573-8337
DOI:	10.1007/s10559-024-00705-3