Principles of development of a digital-field simulation stand for weather radar systems for flight safety in the near airfield area


Аuthors

Bezuglov A. A.1, Gavrilov K. Y.2*, Kudryashova E. V.3

1. Branch of PJSC «UAC» — OTA, Moscow, Russia
2. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia
3. ,

*e-mail: kongav3461@mail.ru

Abstract

One of the effective ways to reduce the time required for the development and testing of metoradiolocation complexes (MRLC) is the use of digital-field modeling stands (DFMS). Given the complexity of the MRLC and the need to conduct numerous tests under different weather conditions and at different times of the year, the use of DFMS can significantly speed up these processes. The paper proposes the structure of the DFMS, which can be used both at the stage of development of the MRLC and for testing it at the stages of certification and modernization. The structure of the proposed DFMS, its purpose, and the main tasks of the DFMS and its components are described. The core of the DFMS simulation model, which includes various hardware and software tools, is described. Taking into account the typical requirements for connecting hardware modules, a structural diagram has been developed for connecting hardware elements to the simulation part of the MRLC. The physical and mathematical model of the MRLC is of great importance in the development of the DFMS. When developing a physico-mathematical model of the MRLC, the initial data affecting the functioning of the MRLC can be divided into two large groups – weather parameters and characteristics and parameters of the MRLC. Weather parameters determine the physical state of the atmosphere, characterized by a combination of various meteorological phenomena (MP). 
In this paper, the models of MP in the form of hydrometeors are considered. Methods for calculating the velocity of movement, droplet size distribution, and absorption, reflection, and scattering characteristics are described for these models. A method for calculating the specific effective scattering area of hydrometeorological formations is also given.

Keywords:

meteorological radar complex; digital field modeling stand; aircraft flight safety; near airfield area; models of meteorological phenomena

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