Reduction of the Phase Noise Level of Heterodynes of Modern Spectrum Analyzers Using Fundamental Frequency Images of Direct Digital Synthesizers
- Authors: Romashov V.V.1, Romashova L.V.1, Khramov K.K.1, Yakimenko K.A.1, Doktorov A.N.1, Ovchinnikov R.V.1
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Affiliations:
- Vladimir State University
- Issue: Vol 61, No 5 (2018)
- Pages: 508-513
- Section: Article
- URL: https://journals.rcsi.science/0543-1972/article/view/246496
- DOI: https://doi.org/10.1007/s11018-018-1459-5
- ID: 246496
Cite item
Abstract
A hybrid frequency synthesizer ins developed in which fundamental frequency images of a direct digital synthesizer are used to improve noise characteristics. It is shown that this synthesizer can generate a wide range of output frequencies with a small step size adjustment. Mathematical modeling of the noise characteristics of the synthesizer and comparison with the noise characteristics of heterodynes of modern spectrum analyzers are carried out.
About the authors
V. V. Romashov
Vladimir State University
Author for correspondence.
Email: romashovmurom@mail.ru
Russian Federation, Vladimir
L. V. Romashova
Vladimir State University
Email: romashovmurom@mail.ru
Russian Federation, Vladimir
K. K. Khramov
Vladimir State University
Email: romashovmurom@mail.ru
Russian Federation, Vladimir
K. A. Yakimenko
Vladimir State University
Email: romashovmurom@mail.ru
Russian Federation, Vladimir
A. N. Doktorov
Vladimir State University
Email: romashovmurom@mail.ru
Russian Federation, Vladimir
R. V. Ovchinnikov
Vladimir State University
Email: romashovmurom@mail.ru
Russian Federation, Vladimir