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Compensation of inter-channel time delays in the noise immune goniometric consumer navigation equipment

Keywords:

V.N. Tyapkin – Ph. D. (Eng.), Associate Professor, Siberian Federal University; Professor, Military-training center. E-mail: tyapkin58@mail.ru V.N. Ratushnyak – Associate Professor, Siberian Federal University. E-mail: oborona-81@ya.ru D.D. Dmitriev – Ph. D. (Eng.), Siberian Federal University; Associate Professor, Military-training center. E-mail: dmitriev121074@mail.ru Yu.L. Fateev – Dr. Sc. (Eng.), Associate Professor, Siberian Federal University; Professor, Military-training center. E-mail: fateev_yury@inbox.ru I.V. Tyapkin – Scientific Production Association «ELEKTRON» Ltd. E-mail: Aronakss@yandex.ru


In some types of professional navigation consumer equipment satellite navigation systems GLONASS and GPS, in addition to high-precision positioning can also be measured by the spatial orientation of the object. This is achieved by interferometric methods by re-ceiving navigation signal on the antenna diversity. In addition, the antenna interferometer can be used to increase the noise immunity of navigation consumer equipment spatial filtering methods. However, in this case there is a contradiction – to increase the accuracy of measuring angles of spatial orientation is necessary to increase the distance between the antennas, but there is inter-channel decorrelation noise due to the appearance of the path difference between the noise signal antennas. This paper presents a equalizing filter based on the application of the delay line for five taps, allowing to adjust the inter-channel delay. Experimental studies have shown the effectiveness of the proposed filter – increased rejection ratio was 10−15 dB.
References:

 

  1. Tjapkin V.N., Fateev JU.L., Dmitriev D.D., Garin E.N., Ratushnjak V.N. Sozdanie pomekhozashhishhennykh navigacionnykh priemnikov, sposobnykh izmerjat prostranstvennuju orientaciju obektov // Uspekhi sovremennojj radioehlektroniki. 2014. № 5. S. 61−65.
  2. Fateev JU.L., Dmitriev D.D., Tjapkin V.N., Ratushnjak V.N. Sintez algoritma zashhity ot pomekh v vosmiehlementnojj fazirovannojj antennojj reshetke // Radiotekhnika. 2014. № 1. S. 29−34.
  3. Dmitriev D.D., Tjapkin V.N., Kremez N.S. Metody adaptacii fazirovannykh antennykh reshetok k pomekham v sputnikovykh radionavigacionnykh sistemakh // Radiotekhnika. 2013. № 9. S. 39−43.
  4. Tjapkin V.N., Fateev JU.L., Dmitriev D.D., Konnov V.G. Kalibrovka izmeritelnogo trakta dlja ispytanija navigacionnojj apparatury potrebitelejj sputnikovykh radionavigacionnykh sistem na pomekhoustojjchivost // Vestnik SibGAU. 2012. № 4(44). S. 139−142.
  5. Yuri L. Fateev, Dmitry D. Dmitriev, Valery N. Tyapkin, Evgeny N. GarinandVladimir V. ShaidurovThephaseambiguityresolutionintheangle-measuringnavigationequipment // AIPConferenceProceedings. 2014. 12. 1611. P. 12−14.

 

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