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Journal Achievements of Modern Radioelectronics №9 for 2015 г.
Article in number:
Improve performance of algorithms for simulation of the spectrum nonlinear frequency conversion in «near» zone
Keywords: Farey series theorem Farey-Cauchy spurs «near» zone direct and inverse algorithm
Authors:
V.I. Loginov - Ph.D. (Eng.), Associate Professor, Volga State University of Water Transport. E-mail: vilog@list.ru
Abstract:
Are researched the performance of algorithms spectrum modeling after nonlinear frequency conversion in «near» zone, based on use methods number theory. Are defined the link between Farey fraction and spurs in «near» zone. Algorithms of definitions near zone based on search double diofantine approximation RF/LO ratio on input mixer in Farey fraction. To search for a second diofantine approximation is used direct and inverse algorithms based on theorem Farey-Cauchy. It is shown that the inverse algorithm for search second approximation has performance on average 38% better than direct algorithm. This value is independent of index Farey fraction.
Pages: 62-69
References

 

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