B.A. Atayants – Ph.D.(Eng.), General Director of Open Company enterprise «KONTAKT-1» (Ryazan) E-mail: skb@kontakt-1.ru

V.M. Davydochkin – Ph.D.(Eng.), Head of Department of Microwave Oven of Devices and Aerials, Open Company enterprise «KONTAKT-1» (Ryazan) E-mail: skb@kontakt-1.ru

V.V. Ezersky – Dr.Sc.(Eng.), Professor, Department of Radio Control and Communications, Ryazan State Radio Engineering University

E-mail: ezerski@yandex.ru

Influence in a wave guide of dispersion, hindrances and attenuations of electromagnetic waves on the ranges of the signal of differential frequency (SDF) calculated with use of the modified integrated and discrete transformation of Fourier at number of counting of SDF both bigger, and smaller numbers of the average periods of fluctuations is investigated. It is shown that at considerable excess by the average differential frequency of a signal of frequency of sampling periodic continuations of a range from a signal and from the hindrances created by reflections from not uniformity of the antenna and waveguide path take a form of hindrances of low level of the frequencies which are almost evenly distributed on an axis. Influence of hindrances from elements of the antenna and waveguide path and loading of a wave guide is investigated. Error level from hindrances of such look is determined. Restrictions of the minimum number of counting of SDF and the maximum measured distance are estimated.

1. Zhdankin V.K. Izmerenie urovnya posredstvom napravlennogo e’lektromagnitnogo izlucheniya // Sovremenny’e texnologii avtomatizaczii. 2004. № 4. S. 6−14.
2. EUROPEAN PATENT APPLICATION 1422503, MPK G01 F 23/284. Apparatus and method for radar-based level gauging / Edvardsson, Kurt Olov, Date of publication: 26.05.2004 Bulletin 2004/22.
3. Baranov I.V., Ezerskij V.V. Vliyanie pomex na pogreshnost’ izmereniya rasstoyaniya v chastotnom dal’nomere promy’shlennogo primeneniya // Vestnik Ryazanskogo gosudarstvennogo radiotexnicheskogo universiteta. 2011. № 37. S. 34−40.
4. Baranov I.V., Ezerskij V.V. Vliyanie shuma na tochnost’ opredeleniya rasstoyaniya dal’nomerom s adaptivnoj chastotnoj modulyacziej // Vestnik Ryazanskogo gosudarstvennogo radiotexnicheskogo universiteta. 2007. № 21. S. 31−36.
5. Davy’dochkin V.M. Preobrazovanie Fur’e v zadache izmereniya rasstoyaniya chastotny’m dal’nomerom v prostranstve s dispersiej // Czifrovaya obrabotka signalov. 2015. № 1. S. 66−70.
6. Davy’dochkin V.M. Izmerenie rasstoyaniya chastotno-modulirovanny’m dal’nomerom po spektru signala raznostnoj chastoty’ s uchetom chastotnoj dispersii v antenno-volnovodnom trakte // Izmeritel’naya texnika. 2016. № 12. S. 19−24.
7. Davy’dochkin V.M. Signal’naya funkcziya v zadache povy’sheniya tochnosti radiolokaczionny’x izmerenij s uchetom chastotnoj dispersii v volnovodax // Izmeritel’naya texnika. 2017. № 8. S. 24−29.
8. Atayancz B.A., Davy’dochkin V.M., Ezerskij V.V. Izmerenie urovnya zapolneniya volnovodnoj napravlyayushhej sistemy’ chastotny’m dal’nomerom pri minimal’nom chisle otschetov signala // Radiotexnika. 2016. № 11. S. 97−102.
9. Davy’dochkin V.M., Davy’dochkina S.V., Ezerskij V.V. Snizhenie metodicheskoj i shumovoj pogreshnostej v zadache oczenki chastoty’ otrezka garmonicheskogo signala // Radiotexnika. 2015. № 11. S. 66−71.
10. Davy’dochkin V.M., Davy’dochkina S.V. Vesovy’e funkczii dlya adaptivnogo garmonicheskogo analiza signalov s mnogomodovy’m spektrom // Vestnik Ryazanskogo gosudarstvennogo radiotexnicheskogo universiteta. 2006. № 19. S. 66−72.
11. Davy’dochkin V.M. Metody’ snizheniya pogreshnosti oczenki parametrov poligarmonicheskix signalov v blizhnej chastotnoj radiolokaczii // Vestnik Ryazanskogo gosudarstvennogo radiotexnicheskogo universiteta. 2006. № 18. S. 63−70.
12. Davy’dochkin V.M. Optimizacziya parametrov vesovy’x funkczij dlya spektral’nogo analiza // Vestnik Ryazanskogo gosudarstvennogo radiotexnicheskogo universiteta. 2013. № 43. S. 54−61.
13. Atayancz B.A., Davy’dochkin V.M., Ezerskij V.V., Parshin V.S., Smol’skij S.M. Preczizionny’e sistemy’ blizhnej chastotnoj radiolokaczii promy’shlennogo primeneniya. M.: Radiotexnika. 2012. 512 s