S.S. Matveev1, A.Yu. Trushinsky2, V.A. Bulanov3, V.V. Kiryushkin4

1-3 MESC “Zhukovsky – Gagarin Air Force Academy” (Voronezh, Russia)

4 JSC RIE “PROTEK” (Voronezh, Russia)

1 gres02@yandex.ru; 2 ws6@rambler.ru; 3 Vac9Paroxod@yandex.ru; 4 kiryushkin.vlad@mail.ru

Formulation of the problem. The implementation of coherent operating modes in the radio altimeter, which is part of the aircraft navigation system, allows, in addition to the true flight altitude, additional speed parameters to be estimated. However, the disadvantage of the known methods is the inability to measure the components of the ground speed of aircraft, which imposes restrictions on the use of methods in autonomous integrated navigation systems.

Purpose. Development of a methodology for estimating the altitude and speed parameters of an aircraft flight based on the signals of a two-channel coherent radio altimeter.

Results. A technique has been developed for estimating the altitude and three components of the aircraft's speed based on the signals of a two-channel coherent radio altimeter. The estimation of the accuracy of measuring the height and three components of the speed of an aircraft based on the signals of a two-channel coherent radio altimeter has been calculated according to the developed methodology.

Practical significance. The developed technique makes it possible to estimate the altitude and speed parameters of an aircraft flight based on the signals of a two-channel coherent radio altimeter with high accuracy with reduced dimensions of the antenna system.

Matveev S.S., Trushinsky A.Yu., Bulanov V.A., Kiryushkin V.V. Methodology for estimating the altitude and speed parameters
of an aircraft flight in a two-channel coherent radio altimeter. Radiotekhnika. 2025. V. 89. № 7. P. 104−110. DOI: https://doi.org/10.18127/j00338486-202507-19 (In Russian)

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