Generating and studying amplitude-frequency modulation signals using Rigol devices
- Authors: Lemeshko N.1, Gorelkin M.2
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Affiliations:
- АО «Корпорация «Комета»
- ООО «РШ Тех»
- Issue: No 2 (233) (2024)
- Pages: 136-151
- Section: Test and measurement
- URL: https://journals.eco-vector.com/1992-4178/article/view/629565
- DOI: https://doi.org/10.22184/1992-4178.2024.233.2.136.151
- ID: 629565
Cite item
Abstract
The article discusses the issues of practical use of amplitudefrequency modulation (AFM) signals, their generation and measurement of characteristics. An example of generating AFM signals using Rigol DSG3136B-IQ generator and studying their properties using Rigol MSO8204 oscilloscope and Rigol RSA5056-TG spectrum analyzer is given.
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About the authors
N. Lemeshko
АО «Корпорация «Комета»
Author for correspondence.
Email: nlem83@mail.ru
начальник отдела
Russian FederationM. Gorelkin
ООО «РШ Тех»
Email: mikhail.gorelkin@rsh-tech.ru
менеджер по продукту
Russian FederationReferences
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Supplementary files
Supplementary Files
Action
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JATS XML
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Fig.1. FFT result for a signal with AFM with single-tone amplitude and frequency modulation, fA = 1 kHz and fCh = 4 kHz
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Fig.2. FFT result for a signal with AFM with single-tone amplitude and frequency modulation, fA = 4 kHz and fCh = 1 kHz
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Fig.3. FFT result for a signal with AFM with single-tone modulation in amplitude and frequency, fA = fЧ = 4 kHz
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Fig.4. FFT result for a signal with AFM with single-tone modulation in amplitude and frequency, with fA = fCh = 4 kHz, m = M = 0.8
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Fig.5. FFT result for the signal: a – with single-tone FM, fCh = 2 kHz, m = 5; b – with AFM at fA = 500 Hz; c – with AFM at fA = 2 kHz
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Fig.6. FFT results obtained with frequency modulation by a smooth signal at Δf = 100 kHz: a – in the absence of AM superposition; b – when superimposing polyharmonic AM with a maximum frequency of 20 kHz
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Fig. 11. Installation for studying signals with AFM in the time domain: a – diagram; b – photograph
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Fig. 12. Installation for studying signals with AFM in the frequency domain: a – diagram; b – photograph
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Fig. 13. Oscillogram of a signal with AFM in the persistence mode with a sweep duration of the order of one period
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Fig. 14. Cursor measurements along the envelope to calculate the AM depth: a – for minimum; b – for maximum
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