A.O. Stakozov1, A.M. Shitikov2

1,2 PJSC “Radiofizika” (Moscow, Russia)

1 Moscow Aviation Institute (National Research University) (Moscow, Russia)

2 Moscow Institute of Physics and Technology (National Research University) (Dolgoprudny, Russia)

1 stakozov990@mail.ru; 2 shitikov.a@radiofizika.com

A critical challenge in the calibration of Digital Array Antennas (DAA): performing accurate calibration under conditions of relative motion between the array and a probe antenna (source of the calibration signal). Conventional calibration techniques rely on fixed or precisely known mutual positions, which is often impractical. Typical scenarios leading to uncontrolled motion and consequent signal phase drift include: calibration using an unmanned aerial vehicle, calibration of shipborne antennas, measurements using satellite signals, or utilization of a ground-based mast subject to wind-induced oscillations. The resulting phase drift varies across different array elements, rendering compensation methods designed for synchronous drift across all channels ineffective. The primary objective of this work is the development and theoretical substantiation of novel calibration methods for DAA reception and transmission, robust against phase drift induced by probe antenna motion. The paper contributes to solving the key problem: how to achieve high calibration accuracy when the probe coordinates are only roughly known at the start and continuously change during the process.

Stakozov A.O., Shitikov A.M. Calibration methods for digital array antennas with a moving probe antenna. Radiotekhnika. 2026. V. 90. № 4. P. 53−61. DOI: https://doi.org/10.18127/j00338486-202604-07 (In Russian)

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