When a high-precision airborne radio altimeter operates at low altitudes in the mode of measuring the sea-surface profile, the local time-dependent backscattering pattern is a characteristic of the reflecting properties of the sea surface in contrast to the majority of other cases where the irradiation spot is significantly greater than the typical sizes of the large-scale surface irregularities. In this case, the altitude estimate at the tracking-system output of the flying-vehicle radio altimeter is the sum of three terms, namely, the altitude to the mean level, the altitude-estimate shift, which varies in time as a function of the slopes of large-scale irregularities, and the component related to the surface topography. The current methodical error of the altitude estimation by the high-precision airborne radio altimeter at low altitudes can be calculated using the justified approximation of the sea-surface large-scale irregularities by a deterministic function.
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References
A.P. Zhukovsky, E. I. Onoprienko, and V. I. Chizhov, Theoretical Fundamentals of Radio Altimetry [in Russian], Sovetskoe Radio, Moscow (1979).
A. I. Baskakov, T. S. Zhutyaeva, and Yu. I. Lukashenko, Location Methods for Studying Objects and Media [in Russian], Akademiya, Moscow (2011).
A. A. Sosnovsky and I. A. Khaimovich, Aviation Radio Navigation [in Russian], Transport, Moscow (1980).
L. E.Ovchinnikov, Theory and Methods of Radio Altimetry [in Russian], V. I. Ul’yanov (Lenin) Leningrad Electrotechnical Inst., Leningrad (1979).
M. -H.Ka, A. I. Baskakov, and A. A.Kononov, IEICE Trans. Commun., E90-B, No. 11, 3237 (2007).
A. I.Baskakov, Radiophys. Quantum Electron., 21, No. 5, 501 (1978).
A. A. Garnaker’yan and A. S. Sosunov, Sea Surface Radar [in Russian], Rostov Univ., Rostov–on–Don (1978).
V. K. Volosyuk and V. F. Kravchenko, Statistical Theory of Radioengineering Systems for Remote Sounding and Radar [in Russian], Fizmatlit, Moscow (2008).
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Radiofizika, Vol. 60, No. 6, pp. 521–529, June 2017.
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Baskakov, A.I., Komarov, A. & Mikhailov, M.S. Methodical Errors of a High-Precision Airborne Radio Altimeter Operating at Low Altitudes Above the Sea Surface. Radiophys Quantum El 60, 467–474 (2017). https://doi.org/10.1007/s11141-017-9815-x
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DOI: https://doi.org/10.1007/s11141-017-9815-x