Peculiarities of using a mobile pseudolite for increase of positioning accuracy on aircraft landing

The authors study accuracy characteristics (dilution of preсision) of an integrated navigation-and-time field in the terminal area created by GLONASS with its mobile pseudolite augmentation. A mobile pseudolite is placed onboard an unmanned aerial vehicle (UAV). The purpose of the article is optimization of UAV flight path which will provide the best aircraft positioning accuracy. The problem of finding an optimal track for the UAV was solved using Hooke-Jeeves method for an aircraft approaching along a flexible track. The article presents the results of the conducted experiments as the UAV optimal flight paths and their charts built according to DOP values for cases of using stationary and mobile pseudolites. Practical recommendations on the choice of optimization criteria are given, and the conditions for using a mobile pseudolite placed on board an unmanned aerial vehicle are determined

1. Adler A., Bar-Gill A., Shimkin N. (2021). Optimal flight paths for engine-out emergency landing //2012 24th Chinese Control and Decision Conference (CCDC). IEEE, Pp. 2908-2915.

2. Baburov V. I., Vasilyeva N. V., Ivantsevich N. V. (2016). Investigation of accuracy of navigational sightings of aircraft using GLONASS system and pseudolites in the Russian Arctic. Regional computer science and IT security. Saint Petersburg: Izdatel'stvo «Sankt-Peterburgskoe Obshchestvo informatiki, vychislitel'noj tekhniki, sistem svyazi i upravleniya», № 2: 340-344. (In Russian).

3. Baburov V. I., Vasilyeva N. V., Ivantsevich N. V., Panov Z. А. (2005). Use of navigational accuracy fields of satellite radio-navigation systems and networks. Sankt-Peterburg: Izdatel'stvo «Agentstvo RDK-Print»», 264 p. (In Russian).

4. Balov A.V., Gevorkyan A. G. (2002). Pseudolites in local SRNS augmentation systems. Analytical review. Saint Petersburg.: RIRT, № 27. 26 p. (In Russian).

5. Borsoev V. A., Galeev R. G., Grebennikov A.V., Kondratyev A. S. (2011). Usage of GLONASS/GPS pseudosatellites in aircraft landing systems. Nauchnyj vestnik Moskovskogo gosudarstvennogo tehnicheskogo universiteta grazhdanskoj aviacii. Moscow: MSTU CA, №164: 17-24. (In Russian).

6. Gardi A., Marino M., Ramasamy S., Sabatini, R., Kistan, T. (2016). 4-Dimensional trajectory optimisation algorithm for air traffic management systems // 2016 IEEE/AIAA 35th Digital Avionics Systems Conference (DASC). IEEE, Pp. 1-7.

7. Global Navigation Satellite System (GNSS) Manual. Doc. 9849. AN/457. 2-nd edition. ICAO. 2013. P. 90.

8. Khardi S. (2012). Aircraft flight path optimization. The hamilton-jacobi-bellman considerations. Applied Mathematical Sciences. Т. 6. №. 25: 1221-1249.

9. Michael Jones. (2017). Army pseudolites: What, why and how? GPS World. August 9, 2017. [Electronic resource]. URl: https:// www.gpsworld.com/army-pseudolites-what-why-and-how (date of access: 11.09.2021).

10. Nigruca I. V., Grebennikov A. V., Kazantsev M. Yu. (2012). Aircraft landing system bases on pseudo satellites signals. Vestnik SibGAU im. akademika M.F. Reshetneva. Krasnoyarsk: SibGAU imeni akademika M.F. Reshetneva, №1: 96-99. (In Russian).

11. Performance-based Navigation (PBN) Manual. Doc. 9613. AN/937. 4-th edition. International Civil Aviation Organization, 2013. 444 p. (In Russian).

12. Skrypnik O. N., Arefev R. O., Arefeva N. G. (2017). Improvement of air navigation support of the landing phase by optimizing the allocation of pseudolites GLONASS. Trudy MAI, №92, 28 p. (In Russian).

13. Skrypnik O. N., Erokhin V. V. (2012). Research of parameters of working constellation GLONASS on the basis of modeling of orbital grouping. Nauchnyj vestnik Moskovskogo gosudarstvennogo tehnicheskogo universiteta grazhdanskoj aviacii. Moscow: MSTU CA. №180: 70-77. (In Russian).

14. Skrypnik O. N. (2020) Radio navigation systems of airports and air routes: textbook. Moscow infra Publ. 325 p. (In Russian).

15. Veremei E. I., Sotnikova M. V. (2016). Optimal routing based on weather forecast. International Journal Of Open Information Technologies. Т. 4. №. 3: 55-61. (In Russian).