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- Article name
- PULSE PILOT SIGNAL DETECTION OF SPATIAL DISPLACEMENTS OF A FOUR-CHANNEL RADIO RECEIVING SYSTEM ON SPACED UAVS
- Authors
- Kostin M. S., , kostin_m@mirea.ru, MIREA - Russian Technological University, Moscow, Russia
Demin O. A., , demin_o@mirea.ru, MIREA - Russian Technological University, Moscow, Russia
Ivantsov M. O., , ivancov@mirea.ru, MIREA - Russian Technological University, Moscow, Russia
- Keywords
- spaced reception / frequency deviation / phase error / pulse pilot signal / spatial instability
- Year
- 2026 Issue 3 Pages 27 - 36
- Code EDN
- EEZYVT
- Code DOI
- 10.52190/1729-6552_2026_3_27
- Abstract
- Based on a configured experimental layout based on two-channel oscilloscopes and a software-configurable transceiver, the use of pulsed pilot signals to determine the spatial displacements of a four-channel radio receiving system on spaced UAVs is described. The results of calculations and operation of an algorithm for determining phase errors, taking into account frequency deviation and the presence of stationary phase errors in a real transceiver, are presented. It was determined that the period of emission of a pulse pilot signal with a carrier frequency of 2.4 GHz should be no more than 62.5 ms, with the UAV moving at a speed of no more than 1 m/s, and at a speed of 20 m/s, the period should be no more than 3.1 ms. The dependences of the phase error for different values of frequency deviation and stationary phase errors are obtained. The limitations of the applicability of the method in determining frequency deviation are revealed due to the nonlinearity of the phase error dependence function with an insufficient number of processed samples. When analyzing the experimental results, the frequency deviation did not exceed 7 kHz, and the phase error value did not exceed 0.6 rad, with its standard deviation not exceeding 0.04 rad. The values of spatial displacements are calculated based on the results of determining phase errors in four receiving channels that do not exceed 20 mm.
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