External field RCS test site

Abstract

The invention belongs to the technical field of RCS testing, and particularly relates to an external field RCS testing site. The site comprises a main area, an auxiliary area and a tested area, the main area is a rectangular area located between tested equipment and testing equipment, a laying area is arranged in the main area, three laying sections are formed in the laying area in the direction from the tested equipment to the testing equipment, and the width of the middle laying section is larger than that of the laying sections at the two ends; the auxiliary region surrounds the main region; the tested area is used for storing tested equipment, the tested area is arranged to be lower than the ground of the main area in the vertical direction to form a pit, the pit is in inclined transition towards the main area, and a tip facing the tested equipment is formed in the transition area; and cement is laid on the ground of the laying area, the auxiliary area and the tested area. The laying area of the test channel is only 17.15% of that of a standard site, the construction cost can be greatly reduced while the performance of the site is ensured, and the requirement for accurate measurement of the overall radar stealth characteristic of a certain type of airplane can be met after the test channel is constructed.

Description

technical field [0001] The application belongs to the technical field of RCS testing, in particular to an outfield RCS testing site. Background technique [0002] The stealth performance of stealth aircraft has always been the focus of attention, and the "4S" standard also ranks the stealth performance as the first. At present, there are four main methods for measuring the scattering characteristics of stealth aircraft, namely, compact field measurement, outdoor ground field measurement, Dynamic flight measurement and indoor near-field measurement, the above methods are applicable to all stages of aircraft design, finalization, production delivery and so on. [0003] Due to the limitation of the size of the quiet zone, the compact field test system is mainly used in the design stage of stealth aircraft to accurately measure the scale model or real parts of the aircraft. This measurement method is characterized by moderate target size and low model processing cost, which is ...

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Problems solved by technology

However, this kind of test requires the construction of a special test laboratory, which requires a huge investment and a long construction period. At present, one such laboratory in China is under research and construction, and it is only for the acceptance of a certain type of aircraft. The relevant test technology is still in the research stage and cannot mature use

[0007] For a certain type of aircraft that has been completed, the various test sites currently available in China are unable to efficiently and accurately measure its radar cross section (RCS)

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