Alexander K. Ermakov, Nikolay V. Povarenkin

 Saint Petersburg State University of Aerospace Instrumentation (SUAI) (St. Petersburg, Russia) 

 ermakov.alexandr.k@gmail.com,  povarenkin.nv@guap.ru

The problem of detecting low-flying objects has been known for a long time, however, since a general solution method has not been found, it still remains relevant. In this regard, there is still a need to develop algorithms for detecting low-flying objects, which require reliable methods for simulating a signal re-reflected from a low-flying target. The purpose of the work is to analyze the methods of modeling the re-reflected signal, choose the optimal one, and also, by means of mathematical modeling, show its effectiveness for practical use.

The results of mathematical modeling of the signal re-reflected from the underlying surface during sounding of a low-flying object using the Kirchhoff method are presented. The efficiency and accuracy of the presented method is shown, as well as a method for optimizing the computational load without introducing restrictions that affect significant parameters. The presented signal modeling method can be used for laboratory tests of algorithms that separate the signal reflected along a straight path from the air object and from the signal re-reflected from the underlying surface.

Ermakov A.K., Povarenkin N.V. Simulation of a signal re-emitted from the underlying surface when probing a lowflying air object using the Kirchhoff method. Achievements of modern radioelectronics. 2020. V. 74. № 11. P. 39–43. DOI: 10.18127/j20700784-202011-07. [in Russian]

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