Comparing Open Area Test Site and Resonant Chamber for Unmanned Aerial Vehicle's High-Intensity Radiated Field Testing

Romero, Sergio Fernandez; Rodríguez, P.; Escot-Bocanegra, David; Martínez, David Poyatos; Cancela, Manuel Anon

doi:10.1109/temc.2017.2747771

Cited by 12 publications

(3 citation statements)

References 16 publications

(14 reference statements)

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“…Milano is a long-endurance [9] tactical unmanned aerial system used at medium altitudes, whose geometry produces a very small radar signature, which reduces the possibility of being detected during missions [10]. Moreover, the Milano UAV, made mostly in carbon-fiber composite, has a wingspan of 12.5 m, a total length of 8.5 m and a height of 2.3 m. The aircraft has an operational ceiling of 7500 m above sea level and an endurance of 20 h of flight time (see Table 1).…”

Section: Introductionmentioning

confidence: 99%

Contributions to Image Transmission in Icing Conditions on Unmanned Aerial Vehicles

Rodríguez Marco,

Sánchez Rubio,

Martínez Herráiz

et al. 2023

Drones

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In terms of manned aircraft, pilots usually detect icing conditions by visual cues or by means of ice detector systems. If one of these cues is seen by the crew or systems detect icing conditions, they have to apply the evasive procedure as defined within the aircraft flight manual (AFM). However, as regards unmanned aircraft, there are not pilots on board and, consequently, nobody can act immediately when icing conditions occur. This article aims to propose new techniques of sending information to ground which make possible to know the aircraft performance correctly in icing conditions. For this goal, three contributions have been developed for the unmanned aircraft Milano. Since icing conditions are characterized quantitatively by the droplet size, the liquid water content, and the total air temperature, when these parameters are between certain limits ice formation on aircraft may occur. As a result of these contributions, in that moment, high-quality images of the wing leading edge, tail leading edge and meteorological probes will be captured and sent to ground making possible that remote pilots or artificial intelligent (AI) systems can follow the appropriate procedures, avoid encounters with severe icing conditions and perform real-time decision making. What is more, as information security is becoming an inseparable part of data communication, it is proposed how to embed relevant information within an image. Among the improvements included are image compression techniques and steganography methods.

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Section: Introductionmentioning

confidence: 99%

Contributions to Image Transmission in Icing Conditions on Unmanned Aerial Vehicles

Rodríguez Marco,

Sánchez Rubio,

Martínez Herráiz

et al. 2023

Drones

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“…The EM SE is measured by various methods and its varying according to the specimen application. These EM SE testing techniques are open field test [28], coaxial transmission line test [20,29,30], shielded box test [31] and shielded room test [32].…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic Interference Shielding of Metal Coated Ultrathin Nonwoven Fabrics and Their Factorial Design

Palanisamy

Tunáková

et al. 2021

Polymers

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Electromagnetic (EM) radiation is everywhere in this world and galaxy in different forms and levels. In some cases, human beings need to protect themselves from electromagnetic radiations and the same thing is also recommended for electronic devices as well. Lots of studies are there on the shielding of electromagnetic radiation interference using metals, polymers, and minerals. For protecting the human being, textile structures are playing the main role. In the textile material structure itself many types are there; each one is having its unique geometrical shape and design. In this work, the copper/nickel-coated ultrathin nonwoven fabric is prepared like a strip. The 3, 6, and 9 mm thick strips are prepared and laid at different gaps, angles, and layered to study the effect of factors on EM shielding effectiveness as per ASTM D4935-10 standard. The design of experiment has been done to analyze the three factors and three levels of the strip properties having an influence on electromagnetic shielding results. From the findings of the design of experiment (DoE) screening design, the factors are the thickness of the strips, the gap between the strips, and the strips laid angle having a statistically significant effect on electromagnetic shielding effectiveness.

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“…In this study, joints from an actual aerial vehicle, the MILANO (Figure 1), will be used as an example. The MILANO [22] is a medium altitude long endurance (MALE) remotely piloted aircraft system (RPAS) under development at the National Institute for Aerospace Technology (INTA). It constitutes a real case of RPAS that is quite representative of current aerial platforms trends.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Joints between Carbon Fiber Composite Parts Using a Microstrip Transmission Line Method

Plaza

López

Poyatos

2021

Sensors

Self Cite

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The electromagnetic performance of aerial platforms, which are composed mostly of nonmetallic materials, is a subject of great interest at present time. The behavior of this type of composite structure against electromagnetic environmental effects (E3), such as lightning, is not well-studied as in the case of metalic structures. The purpose of this article is to characterize the joints present in aerial platforms constructed mainly of nonmetallic composite materials. The study of these joints is fundamental because electrical discontinuities or preferential routes can produce changes in the electromagnetic behavior of an aircraft. The proposed measurement system for the characterization of these joints is a microstrip line. The flexibility of the test setup allows for evaluation of different joints in carbon fiber composite (CFC) samples with a different number of plies. Additionally, approximated models of the behavior of the joints as well as the detection of possible defects in the joining process are reported.

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Comparing Open Area Test Site and Resonant Chamber for Unmanned Aerial Vehicle's High-Intensity Radiated Field Testing

Cited by 12 publications

References 16 publications

Contributions to Image Transmission in Icing Conditions on Unmanned Aerial Vehicles

Contributions to Image Transmission in Icing Conditions on Unmanned Aerial Vehicles

Electromagnetic Interference Shielding of Metal Coated Ultrathin Nonwoven Fabrics and Their Factorial Design

Characterization of Joints between Carbon Fiber Composite Parts Using a Microstrip Transmission Line Method

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