Browsing by Author "Petrova I."

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  • Angle variations distribution of SW signal 
    Bochkarev V.; Latypov R.; Petrova I.; Teplov V. (2006)
    Angle variation distribution analysis was realized in this work. We use oblique ionospheric data from Doppler phase goniometric complex "Specrt" for analysis. Two windows spectral estimation method was used to get series ...
  • Application of HF Doppler measurements for the investigation of internal atmospheric waves in the ionosphere 
    Petrova I.; Bochkarev V.; Latipov R. (2009)
    We present results of the spectral analysis of data series of Doppler frequency shifted signals reflected from the ionosphere, using experimental data received at Kazan University, Russia. Spectra of variations with periods ...
  • Calibration system of HF multichannel radio receiver system 
    Latypov R.; Bochkarev V.; Petrova I.; Teplov V. (2006)
    Calibration system for SW band multi channel system is presented in this article. Calibration system is used to register amplitude and phase errors on-the-fly and to correct them in processing phase. Modern components is ...
  • Digital multichannel complex for the monitoring of the ionosphere 
    Bochkarev V.; Latypov R.; Petrova I.; Teplov V. (2004)
    The method of oblique ionospheric sounding is widely applied in researches of global processes in lower termosphere of the Earth. Monitoring of geophysical processes in the Earth atmosphere is frequently carried out with ...
  • Distributions of amplitude and phase fluctuations in tilt ionospheric sounding signals 
    Petrova I.; Bochkarev V.; Teplov V. (2004)
    The impact of amplitude and phase fluctuations in tilt ionospheric sounding signals on the accuracy of determining angles of arrival in small-base antenna systems is discussed. The comparison of empirical distributions of ...
  • Effects of the geomagnetic storm on October 29-31, 2003, on mid-latitude short-wave radio paths (the data of Doppler measurements) 
    Bochkarev V.; Petrova I.; Teplov V. (2004)
    We present the results of spectral analysis of a signal of oblique sounding of the ionosphere. This signal was received at the Doppler phase-angle measuring facility of Kazan University during the geomagnetic storm on ...
  • Gyroharmonic features of the hf-induced ionospheric irregularities 
    Frolov V.; Bolotin I.; Komrakov G.; G.vertogradov G.; Vertogradov V.; Vertogradova E.; Akchurin A.; Bochkarev V.; Dresher A.; Zykov E.; Katypov R.; Petrova I.; Yusupov K.; Kunitsyn V.; Padokhin A.; Kurbatov G. (2012)
    Gyroharmonic features of the different-scale artificial plasma-density irregularities excited by HF modification of the ionospheric F2 region under conditions where the frequency of the O-mode pump wave is close to the ...
  • Influence of a solar eclipse on Doppler frequency shift of signal from upper atmosphere 
    Yu T.; Bochkarev V.; Latipov R.; Petrova I. (2006)
    The Doppler shift frequency (DSF) method and based on it the interference goniometric techniques are effectively applied in ionospheric researches [1-3]. The long-time continuous measurements are required for research the ...
  • Personality profiles and the "russian soul": Literary and scholarly views evaluated 
    Allik J.; Realo A.; Mõttus R.; Pullmann H.; Trifonova A.; McCrae R.; Yurina A.; Shebanets E.; Fadina A.; Tikhonova E.; Troitskaya I.; Fatyhova R.; Petrova I.; Tudupova T.; Tsiring D.; Panfilov A.; L'dokova G.; Aristova I.; Mescheryakov B.; Zorina J.; Yuschenkova D.; Fotekova T.; Osmina E.; Vavilkina N.; Skhorohodova N.; Zernova T.; Dostovalov S.; Kadykova S.; Korepanova I.; Saharova A.; Naumov N.; Snegireva T.; Kuznetsov I.; Kuznetsova S.; Rubtsova M.; Filatova A.; Nechaeva T.; Borisova S.; Postnikova M.; Gluhanyuk N.; Dyachenko E.; Fomina N.; Eromasova A.; Myshkina S.; Rulina T.; Yavkina E.; Knyazev G.; Ryabichenko T.; Demidova I.; Uvarov E.; Lopukhova O.; Vasyagina N.; Leonenko N.; Arinin E.; Lyapina A.; Dulina N.; Poyarova T.; Gaidar K.; Baranov A.; Kozhevnikova O.; Kalinichenko O.; Korneeva E. (2011)
    Many domestic and foreign observers have claimed that Russians have a unique constellation of personality traits that mirrors their distinctive historical and cultural experience. To examine the hypothesized uniqueness of ...
  • Research of wave processes in thermosphere by oblique sounding method 
    Bochkarev V.; Latypov R.; Petrova I.; Yu T. (2004)
    Research of wave processes in ionosphere is one of the directions of the works on a Doppler phase-goniometric complex of the Kazan State University. This research is based on the analysis of periodic parameters variations ...
  • Small-base location system for narrowband SW-sources 
    Teplov V.; Bochkarev V.; Petrova I. (2004)
    The paper proposes a new technique for measuring parameters of narrow-band shortwave signals in the overthe-horizon propagation environment. Issues of small-base diversity-reception antenna design and digital processing ...
  • The daily variations of Doppler frequency shift of ionospheric signal on middle-latitude radio lines 
    Petrova I.; Bochkarev V.; Teplov V.; Sherstyukov O. (2007)
    Doppler frequency shift (DFS) analyses of middle-latitude radio line signals during different seasons and for different geomagnetic conditions are presented in this work. It is shown; that during quiet geomagnetic conditions ...
  • Use of galvanostatic coulometry in the analysis of arbidol drug 
    Abdullina S.; Petrova I.; Lira O.; Ziyatdinova G.; Budnikov H. (2012)
    Arbidol is proved to easily and completely react with electrogenerated bromine in the ratio 2: 9; so procedures for the arbidol quantification in the neat substance and drugs are developed, the RSD value does not exceed ...
  • Use of global ionospheric maps for HF Doppler measurements interpretation 
    Petrova I.; Bochkarev V.; Latypov R. (2017)
    © 2017. The HF Doppler technique, a method of measurement of Doppler frequency shift of ionospheric signal, is one of the well-known and widely used techniques of ionosphere research. It allows investigation of various ...

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