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  5. Improvement of method of calculation of aspect of area of finding out aims ratio by a survey RLS on condition of influence of active noise hindrances

Improvement of method of calculation of aspect of area of finding out aims ratio by a survey RLS on condition of influence of active noise hindrances

V. Klimchenko, O. Bielavin, V. Tutunnyk, A. Lukianchykov
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Description: During the leadthrough of ground tests of radars of review of air space such important description of radar, as aspect of area of finding out aims ratio, is determined on conditions of action of active noise hindrances of the set intensity. Procedure is difficult enough, both on creation of necessary radio electronic situation and on the leadthrough of the subsequent flying around of radar. Possibilities of the use in the process of leadthrough of state tests of radars of existent methods of determination of aspect of area of finding out aims survey radars ratio are examined on conditions of action of active noise hindrances. The basic lack of existent methods is that they require a leadthrough or flying around on difficult trajectories, or multiple flying around on different heights. At certain terms the amount of flying around can be diminished in times. But for this purpose the proper correc-tion of methods of determination of aspect of area of finding out aims survey radars ratio is needed on condition of action of active noise hindrances. It is well-proven that at the known form of diagram of orientation of aerial in a vertical plane for deter-mination of aspect of area of finding out aims ratio it is possible to be limited to flying around on one certain height. According to average data of radar flying at one height (10000…12000 m) angle of elevation at which it was detected is calculated and by the known shape of vertical cross section of antenna diagram is determined vertical section of detection zone under interference. After that should be solved a system of two equations, one of which describes the vertical section of the target detection zone in the interference, and the second one – a line of equal height above the surface of the geoid, taking into account the normal re-fraction. Then we find the intersection point, the distance to which will give us the desired value of the target detection range at any altitude in interference conditions.


Keywords: survey radio-location stations, area of finding out aims, aspect of area of finding out aims ratio.

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Reference:
 Klymchenko, V.Y., Bielavin, O.V., Tiutiunnyk, V.O. and Lukianchykov, A.A. (2019), “Udoskonalennia metodyky rozrakhunku koefitsiienta stysnennia zony vyiavlennia tsilei ohliadovymy RLS za umov dii aktyvnykh shumovykh zavad” [Improvement of method of calculation of aspect of area of finding out aims ratio by a survey RLS on condition of influence of active noise hindrances], Science and Technology of the Air Force of Ukraine, No. 4(37), pp. 73-79. https://doi.org/10.30748/nitps.2019.37.11.