남성보 Seong-bo Nam , 박제홍 Je-hong Park , 최원혁 Won-hyuk Choi

DOI:10.12673/jant.2025.29.5.480 JANT Vol.29(No.5) 480-485, 2025

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Aeronautical lighting serves as a primary means for pilots and air traffic controllers to intuitively recognize the location of navigational facilities during nighttime operations. Similar aeronautical lights are defined as lighting sources that may cause confusion in identifying aeronautical lighting, and because they can have a significant impact on aviation safety, quantitative evaluation is required. Although studies have been conducted to quantitatively analyze and assess the visual impairment effects caused by large-scale lighting facilities such as stadium floodlights during nighttime operations, the evaluation factors and some formulas appear not to sufficiently reflect the characteristics of aeronautical lighting. In this paper, the suitability and limitations of existing evaluation models are analyzed, and additional considerations―such as color characteristics and spatial arrangement― are proposed as essential prerequisites for assessing the visual influence of aeronautical lights and similar aeronautical lights.

손민혁 Minhyuk Son , 박건환 Geonhwan Park , 박소라 So-ra Park , 이병석 Byungseok Lee

DOI:10.12673/jant.2025.29.5.486 JANT Vol.29(No.5) 486-494, 2025

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The Korea augmentation satellite system (KASS) launched its second KASS geostationary earth orbit (GEO) satellite in November 2024 to enhance the availability and continuity of safety of life (SoL) services for aviation. The integration of SoL services for this satellite and the new Kass uplink station (KUS) subsystem is scheduled for December 2025. To ensure successful integration, the newly added subsystem must undergo additional interworking, testing, and verification with the existing KASS subsystem that provides SoL services. In this study, a series of procedures for development, testing, and verification were defined to integrate the second KASS GEO satellite and its related subsystems into SoL services, and the corresponding test and verification results were compiled. These defined procedures and related experiences are expected to contribute to the continuous improvement of KASS subsystem performance, support the development of the next generation of KASS, and aid in the advancement of new satellite navigation systems.

천영호 Young-ho Cheon , 임현묵 Hyun-mook Lim , 김갑동 Kap-dong Kim , 강대일 Dae-il Kang , 김준형 Jun-hyoung Kim

DOI:10.12673/jant.2025.29.5.495 JANT Vol.29(No.5) 495-504, 2025

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In this paper, we introduce a development strategy for VMC (Vehicle Management Computer) based on MOSA, which is currently being developed by the U.S. Department of Defense and related industry partners. MOSA is being developed and utilized by the U.S. Army, Navy, and Air Force, and several companies are now releasing MOSA-enabled products. In response to this global trend, Korea plans to initiate government-funded projects led by industry partners to promote the application of K-MOSA. This paper also presents a development approach for MOSA-based airborne aircraft management computers an aircraft management computer utilizing the FACE architecture along with the development of SOSA-compliant plug-in cards to adapt K-MOSA specifications. In order to ensure compatibility with existing equipment, software reliability is being ensured through the use of RTOS with HVP and OPEN-GL SC. The aircraft management computer designed and implemented in this study is expected to be applicable to future projects, such as AI-based fused unmanned and manned combat systems currently under development for K-MOSA related programs in Korea.

김영인 Young-in Kim

DOI:10.12673/jant.2025.29.5.505 JANT Vol.29(No.5) 505-513, 2025

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Most of the current research and analysis on MRO infrastructure in Korea has focused on medium and large sized aircraft, while studies on small aircraft remain insufficient. Therefore, this paper aims to propose strategies for establishing and developing maintenance infrastructure for small aircraft. Using the C172S, this study analyzed the essential infrastructure required for aircraft maintenance and derived effective construction strategies through field surveys and case analyses. Additionally, a hybrid maintenance operation model and development strategy were proposed, considering future expansion to medium-sized aircraft. The results indicate that the initial infrastructure required for small aircraft maintenance includes a maintenance hangar, material storage, and tool rooms, totaling 1,106 m². For medium-sized aircraft, the required area was calculated as 3,370 m². Furthermore, when operating ten small aircraft and one medium-sized aircraft simultaneously, a total area of 6,730 m² is required. The plans to extend future research toward maintenance systems suitable for regional air mobility (RAM) and urban air mobility (UAM).

박주영 Ju-young Park , 여환재 Hwan-jae Yeo , 김유빈 You-veen Kim , 박준택 Jun-taek Park , 임현묵 Hyun-mook Lim , 김준형 Jun-hyoung Kim

DOI:10.12673/jant.2025.29.5.514 JANT Vol.29(No.5) 514-520, 2025

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Power supply board (PSB) mounted on the avionics equipment is a SRU (shop replacement unit) that requires high reliability and must supply stable power even under various environment change. If an aircraft is equipped with a low robustness PSB, power supply is unstable and the aircraft may crash due to a power outage. Therefore, it must be designed to satisfy the representative aircraft power standard, MIL-STD-704, and PSB must supply stable power even when the over-voltage specified in the MIL-STD-704 standard is applied. In addition,PSB must not be damaged even when over-current is applied from the external input power. If input power supply is subject to low voltage outside normal range of MIL-STD-704 standard, or if output power of PSB do not turn on or off in proper order, the avionics equipment is more likely to malfunction. In order to exclude these risk factors and increase robustness, the PSB with these protection circuits and control circuits applied was tested to evaluate its function and performance.

임현묵 Hyun-mook Lim , 천영호 Young-ho Cheon , 박주영 Ju-young Park , 김준형 Jun-hyoung Kim

DOI:10.12673/jant.2025.29.5.521 JANT Vol.29(No.5) 521-527, 2025

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Modern aerial warfare operations demand real-time data processing, rapid decision-making, and flexible mission adaptability in multi-domain battlefields. MUM-T, a strategic concept involving cooperative operations between manned fighter aircraft and unmanned aerial vehicles (UAVs), has garnered attention for its potential to enhance mission effectiveness, survivability, and reduce pilot cognitive workload. The AI board must perform ultra-high-speed signal processing within a short time frame for MUM-T. To satisfy this requirement, the AI board proposed in this paper has applied gigabit ethernet and CSI-2 interfaces. This paper presents the rationale behind the selection of a high-performance AI module through a comparative analysis of leading AI solutions, followed by a detailed system application scenario. It further explores the hardware design and testing strategy based on the NVIDIA AGX Orin module, which meets the Open Group Sensor Open Systems Architecture (SOSA) standard. In particular, the developed board is intended for application in mission collaboration systems between MUM-T. Upon completion, it is expected to reduce pilot workload while maximizing mission effectiveness and survivability.

전대근 Daekeun Jeon , 오은미 Eun-mi Oh

DOI:10.12673/jant.2025.29.5.528 JANT Vol.29(No.5) 528-539, 2025

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This study proposes a research strategy for the implementation of the flight and flow information for a collaborative environment (FF-ICE), which is a key enabler for next-generation air traffic management (ATM). The international civil aviation organization (ICAO) is leading the global implementation of trajectory-based operations (TBO) by introducing FF-ICE in phases, along with the decommissioning of the existing FPL2012 flight planning system. Various research initiatives and demonstration projects are actively underway in the United States, Europe, and the Asia-Pacific region to support this transition. However, in Korea, preparations for the sunset of FPL2012 remain insufficient, and there is no integrated flight plan processing system similar to Europe's integrated initial flight plan processing system (IFPS). Based on the concepts and service requirements of FF-ICE, this study proposes a comprehensive research and development strategy consisting of four key components: (1) establishment of FF-ICE operational concepts, (2) development of core systems, (3) construction and validation of a high-fidelity integrated test-bed, and (4) participation in international standardization and collaborative research initiatives.

김우리얼 Woo-ri-ul Kim , 송동현 Dong-hyun Song , 김준태 Jun-tae Kim , 신희건 Hui-geon Shin

DOI:10.12673/jant.2025.29.5.540 JANT Vol.29(No.5) 540-545, 2025

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This paper presents the design and implementation of test software for EMI/EMC testing of flight control computers. The software was developed to comprehensively support the entire testing process with systematic state and mode management, reliable communication handling, precise test execution, and result evaluation. Additionally, long-duration integration testing was conducted using inspection equipment integrating real-time Linux-based UEI software and a LabVIEW-based GUI. The test results confirmed not only the reliability of the test software but also the effectiveness of its debugging support capabilities, enabling rapid analysis and resolution of issues arising during EMI/EMC testing. This study is expected to contribute to the automation and enhanced reliability of EMI/EMC testing for flight control computers.

이창현 Chang-hyeon Lee , 윤수빈 Subin Yoon , 고재근 Jaekun Ko , 이명진 Myeong-jin Lee

DOI:10.12673/jant.2025.29.5.546 JANT Vol.29(No.5) 546-553, 2025

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In this paper, we propose a drone-borne synthetic aperture radar (SAR) system architecture that combines RTK-GNSS positioning and a back-projection algorithm (BPA) for high-resolution SAR imaging under nonlinear drone trajectories and external disturbance environments. The proposed system consists of a drone mobile station equipped with an RTK-GNSS receiver, a SAR sensor, and an imaging pipeline, and a ground station that transmits RTCM correction data in real-time. On the mobile station, the imaging pipeline operates with interpolation of SAR raw data and RTK positioning data, range compression, and back-projection onto the imaging plane. Experimental results show that RTK positioning improved relative error by up to 20 times compared to GPS, leading to a 2.5-fold enhancement in SAR image resolution. Furthermore, 95% of repeated flight trajectory sections were maintained within an error radius of 0.298 m, confirming high trajectory reproducibility required for InSAR/DInSAR applications.

김종호 Jong Ho Kim

DOI:10.12673/jant.2025.29.5.554 JANT Vol.29(No.5) 554-560, 2025

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In this paper, we propose an antenna mounted on the surface of plane with an conformal built-in antenna structure. This antenna is a buried antenna consistent with the appearance of the plane and is used for transmission and reception of tactical data links. Using High-Frequency Structure Simulator (HFSS) and CST Microwave Studio, electromagnetic (EM) simulation analysis software, we designed antenna to resonate and radiate in the tactical air network (TACAN) frequency band. Through this, it was confirmed that it has a standing wave ratio (V.S.W.R) of 2.0 : 1 or less at 960 MHz to 1,220 MHz, a peak gain of more than 0 dBi, and an omni-directional radiation pattern. And we simulated this antenna in the plane model and checked the requirements are achieved. In addition, we fabricated designed antenna and measured to satisfy the requirements and confirm it was similar to the simulation results.