A.V. Grebennikov - Ph.D. (Eng.), Head of Sector, JSC «SPE «Radio and Communication» (Krasnoyarsk) A.K. Dashkova - ст. преподаватель, Departament «Radioelectronic systems», Engineering Physics and Radioelectronics Institute, Siberian Federal Universit (Krasnoyarsk) F.V. Zander - Ph.D. (Eng.), Associate Professor, Head of Department «Radioelectronic systems», Engineering Physics and Radioelectronics Institute, Siberian Federal Universit (Krasnoyarsk) E-mail: FZander@sfu-kras.ru A.V. Kudrevich - Post-graduate Student, Department «Radioelectronic Information Systems Technology», Engineering Physics and Radioelectronics Institute, Siberian Federal Universit (Krasnoyarsk) A.V. Yachin - Post-graduate Student, Department «Radioelectronic Information Systems Technology», Engineering Physics and Radioelectronics Institute, Siberian Federal Universit (Krasnoyarsk)

The emergence of global navigation satellite systems (GNSS) GLONASS and GPS and the development of the theory of high-precision phase measurements of the distances allowed, in General, solve the problem of attitude determination as stationary and movable ob-jects. However, as the theoretical calculations and practical implementation of navigation devices with the ability to determine the spatial orientation of objects more vulnerable to these measurements showed the level of influencing entrance equipment interference compared with simple navigation measurements of location objects. It was also shown that in order to improve the accuracy of spatial dimensions to significantly reduce hardware errors encountered during processing of Navigation GNSS signals, using all the energy as much as possible nautical signals from multiple navigation spacecraft (NCA) concurrency. Advantages of the proposed technical solution involves using the channel for the reception and processing of signals with one signal processing circuit (due to the introduction of the device N modulators and Adder), resulting in increased accuracy of information pa-rameters by eliminating errors due to several signal processing paths are not identical. The proposed device also suppresses any different in structure (signal level, type of modulation, the corner of the parish, etc.) from NCA GLONASS or GPS, through the development of Adaptive directional pattern with minimal sensitivity towards the arrival of interference, and with a maximum-in the direction of arrival of the signals from the GLONASS or GPS NCA. When you do this at the expense of signal processing in one tract definition signal parameters and interference occurs with greater accuracy, resulting in more accurate formation of Adaptive directional diagrams and, consequently, a better suppression of noise equivalent to improve signal-to-noise ratio. The result of all these factors leads to increased accuracy of the main outcome of the proposed device is to determine the spatial orientation of the object. Described in article device provides the definition of the spatial orientation of an object with a high accuracy relative to known technical solutions by eliminating systematic errors in the admission of the navigation signal sources on different elements of the antenna array and processing them into different foster tracts caused by not identical suction ducts signal processing from different elements of the antenna array, including, not identical to analog-to-digital converters. When this random error, at least not getting worse compared to the known way, as in the proposed device not appear in monitoring breaks a signal from one source, that is preserved as far as possible the signal/noise ratio due to the use of all incoming energy signal. Through further processing and adaptive beam forming antenna array with a minimum sensitivity towards joining interference sup-pressing these jammers device has proposed increasing the signal/noise ratio compared to devices with separate antennas and without the use of adaptive signal processing to interference. The proposed device allows with minimal hardware costs increase by an order of magnitude or more measurement accuracy of angles of arrival of signals from the NCA and, accordingly, reduce error of determine the direction of the satellite, as well as the spatial orientation of the object. And the definition of spatial orientation of an object in the proposed device is carried out on the signals of two GNSS GLONASS and GPS, which also increases the accuracy and reliability of measurements.

 

1. Fateev JU.L. Teoreticheskie osnovy i prakticheskaja realizacija uglovykh izmerenijj na osnove globalnykh navigacionnykh sputnikovykh sistem // Diss. - dokt. tekhn. nauk. Krasnojarsk. 2004.
2. Patent RF 2446410. MPK7 G01S5/02. Sposob uglovojj orientacii obekta po signalam sputnikovykh radionavigacionnykh sistem. Aleshechkin A.M. FGAOU VPO Sibirskijj federalnyjj universitet (RU). Zajavka №2010162184/07 ot 20.12.2010. Opubl. 27.03.2012.
3. Baroni L., Kuga H.K. Analysis of Attitude Determination Methods Using GPS Carrier Phase Measurements // Mathematical Problems in Engineering. V. 2012. Article ID 596396. Doi:10.1155/2012/596396.
4. Wang C., Lachapelle G. GPS Attitude Determination Reliability Performance Improvement Using Low Cost Receivers // Journal of Global Positioning Systems (2002). V. 1. № 2. P. 85-95.
5. Grebennikov A.V. Kalibrovka sistematicheskojj zaderzhki v radionavigacionnojj apparature GNSS, obespechivajushhejj opredelenie prostranstvennojj orientacii // Uspekhi sovremennojj radioehlektroniki. 2013. № 9. S. 26-32.
6. Patent US №20110090114. Ultra short baseline GNSS receiver. Opubl. 21.04.2011.
7. Patent US №4719469 A1. Direction-determining system. Opubl. 12.01.1988.
8. Patent RF №2425393. MPK7 G01S5/02. Ustrojjstvo dlja opredelenija napravlenija na istochnik radiosignala / Grebennikov A.V., Zander F.V., Kondratev A.S., Novikov V.B., Sizasov S.V., KHazagarov JU.G. FGAOU VPO Sibirskijj federalnyjj universitet (RU). Opubl. 2011. Bjul. № 21.
9. Patent US №6598009 V2. Method and device for obtaining attitude under interference by a GSP receiver equipped with an array antenna. Opubl. 22.07.2003.
10. Patent RF №2547840. MPK7 G01S5/02. Ustrojjstvo dlja opredelenija prostranstvennojj orientacii obekta / Grebennikov A.V., Zander F.V., Kondratev A.S., Kudrevich A.P., Sizasov S.V., JAchin A.V. FGAOU VPO Sibirskijj federalnyjj universitet (RU). Zajavl. № 2014107449/07 ot 26.02.2014. Opubl. 10.04.2015. Bjul. № 10.