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.

정다희 Dahee Jeong , 김현우 Hyunwoo Kim , 김성훈 Sunghoon Kim , 김기두 Ki-du Kim , 최한결 Han-gyeol Choi , 이민재 Min-jae Lee

DOI:10.12673/jant.2025.29.5.561 JANT Vol.29(No.5) 561-567, 2025

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The vertiport, a core infrastructure for the commercialization of urban air mobility(UAM), enables vertical take-off and landing of UAM vehicles and is expected to be established across various urban areas. However, since vertiports may vary in design and operation depending on regional environments, technical specifications, and business models, a systematic framework is needed for efficient and integrated management in large-scale operations. This paper analyzes domestic and international trends in vertiport technologies and standards and proposes an operational framework for efficient management of multiple vertiports. It also identifies essential requirements the framework must meet. Standardizing the proposed approach will ensure technical consistency and interoperability of vertiport infrastructure, supporting the stable development of the UAM industry and the sustainable expansion of the urban air mobility ecosystem.

신정훈 Jeonghun Shin , 오성탁 Sungtak Oh , 김동윤 Dongyun Kim , 이동진 Dongjin Lee

DOI:10.12673/jant.2025.29.5.568 JANT Vol.29(No.5) 568-578, 2025

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electric-powered vertical take-off and landing(eVTOL) urban air mobility(UAM) aircraft operating in urban environments can impose high cognitive and control workload on pilots during vertiport approach and landing. This paper proposes an autonomous flight system using onboard cameras to reduce pilot workload and improve operational safety. The forward-facing camera detects the touchdown and lift-off(TLOF) and applies the random sample consensus(RANSAC) algorithm to the extracted feature points to estimate the relative distance and angle for approach. During the landing phase, the aircraft performs the final descent based on the pixel-coordinate error between the TLOF center and the downward-facing camera image. An urban wind simulation environment was configured. Tests were run in this environment, confirming the aircraft is successfully landing on the vertiport.

박종우 Jong-woo Park , 안민기 Min-gi Ahn , 김한리 Han-ri Kim , 최혁재 Hyeok-jae Choi , 김경태 Kyung-tae Kim

DOI:10.12673/jant.2025.29.5.579 JANT Vol.29(No.5) 579-587, 2025

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Radar is a core sensor used in navigation. However, clutter―unwanted reflections from the ground, sea―cdegrades radar performance, requiring accurate modeling. Most statistical clutter models rely on measursed data, limiting their prediction in unmeasured areas. This study proposes a predictive model for clutter in heterogeneous terrains under bistatic conditions. The model fits probability density functions to clutter data from homogeneous terrains and combines them with weights derived from antenna footprint and surface reflection coefficients to estimate clutter in composite terrains. Comparison with measured data demonstrates the model’s predictive performance: in grass-concrete terrain, Bhattacharyya distances were lower than Weibull, Log-normal, Gaussian, and Rayleigh distributions; in concrete-steel terrain, slightly higher but differences were small. The proposed method provides a data-efficient approach for clutter prediction, effective even in complex environments.

권지헌 Ji-hun Kwon , 목지현 Ji-hyun Mok , 안재운 Jae-woon Ahn , 윤지용 Ji-yong Yoon

DOI:10.12673/jant.2025.29.5.588 JANT Vol.29(No.5) 588-594, 2025

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As avionics software becomes more complex, the need for highly portable and platform-independent architectures has grown. The FACE Technical Standard emphasizes the management of shared graphic resources through the graphics display management service. This study proposes a portable graphics composition system using the EGL_EXT_compositor extension based on the FACE standard. By separating the renderer (PCS) and the compositor (PSSS) and dynamically configuring graphics settings at runtime through the configuration service, the proposed system enables code-free integration and improved modularity. Verification on the Intel Tiger Lake platform demonstrated real-time dynamic rendering and composition, validating the scalability and portability of graphic software required by FACE and higher-level standards such as MOSA and SOSA.

여준호 Junho Yeo , 이종익 Jong-ig Lee

DOI:10.12673/jant.2025.29.5.595 JANT Vol.29(No.5) 595-600, 2025

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In this paper, a double dipole quasi-Yagi antenna using a 4×4 meander line array structure for maintaining 9 dBi gain in a wide frequency range was studied. The proposed antenna consists of a 4×4 meanderline array structure comprised of a unit cell in the shape of a meander line conductor, which acts as a director, and a double dipole quasi-Yagi antenna. The input reflection coefficient and gain characteristics of the double dipole quasi-Yagi antenna with different vertical layers of the meander line array director were compared with those without the meander line array structure. As the number of vertical layers of the meander line array structure director increased from 1 to 4, the in-band gain of the antenna gradually increased from 7 dBi to 9 dBi. The frequency band of the fabricated antenna for a voltage standing wave ratio less than 2 was 1.549-2.744 GHz(55.7%), and gain was measured to be more than 9 dBi in the 1.6-2.7 GHz band.

이성렬 Seong-real Lee

DOI:10.12673/jant.2025.29.5.601 JANT Vol.29(No.5) 601-607, 2025

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An analysis was performed to derive design conditions for a dispersion map to compensate for signal distortion caused by chromatic dispersion and nonlinear phenomena of single-mode fiber (SMF). Dispersion map designed using SMF and added dispersion-compensating fiber (DCF) in dispersion-managed link can cause compensation of dense wavelength division multiplexed (DWDM) signals to vary depending on its shape or detailed configuration. In this paper, we numerically analyzed the compensation performance for various cases according to the selection and combination of optical fibers contributing to the composition of the dispersion map through simulation. The analysis results confirmed that using DCF as the optical fiber contributing to the dispersion map configuration in all transmission spans is more advantageous than other cases in compensating for 960 Gb/s DWDM signal distortion.

맹충용 Chung-yong Maeng , 최병상 Byung-sang Choi , 편용국 Yong-kug Pyeon

DOI:10.12673/jant.2025.29.5.608 JANT Vol.29(No.5) 608-613, 2025

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This study proposes a dual-structure lighting device that combines an electrodeless discharge lamp and a light-emitting diode (LED), and experimentally verifies its illumination enhancement and energy-saving effects. The proposed device utilizes the counter electromotive force generated in the electrodeless lamp to drive the LED in a wireless and contactless manner, thereby eliminating additional power consumption. Experimental results show that the average illuminance increased by approximately 25% compared to a conventional electrodeless lamp, while power consumption decreased by about 18% under the same luminous flux conditions. Furthermore, the contactless LED module can be replaced without power interruption, significantly improving maintenance convenience. These findings demonstrate that the proposed lighting system can provide an efficient and eco-friendly solution for industrial facilities, ports, roads, and sports arenas where high illuminance is required.

권대현 Daihyun Kwon , 주혜선 Hyesun Ju , 윤지환 Ji Hwan Yoon , 노지은 Jieun Roh

DOI:10.12673/jant.2025.29.5.614 JANT Vol.29(No.5) 614-620, 2025

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This paper presents a method for eliminating false alarm that occur due to incorrect processing of range ambiguity solving. False alarm refers to a case where a target is mistakenly detected in a location where no actual target exists. The causes of false alarm in range ambiguity solving were analyzed. The false alarm was caused by overlapping burst plots within the dwell plot. To resolve this issue, a false alarm removal algorithm has been proposed. It was also inferred that signal processing errors increase the false alarm rate. To model the signal processing errors, uniform and normal distributions were used. MATLAB simulations were conducted to verify the proposed algorithm.

권민재 Min-jae Kwon , 정한솔 Han-sol Jung , 김병국 Byoung-kug Kim

DOI:10.12673/jant.2025.29.5.621 JANT Vol.29(No.5) 621-626, 2025

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This study proposes an AI-driven video data mining and “data diet” system. The proposed system assesses the importance of video segments through object detection and analysis, and adaptively selects compression methods based on the results. We apply it to a CCTV-based monitoring environment, where AI-based object detection is performed on video streams to generate metadata. By analyzing the generated metadata, the system determines whether a segment is important and dynamically switches the compression pipeline to reduce storage while preserving salient content. It also separates important data from other data into distinct storage tiers to improve data management. Deploying the system reduces overall storage consumption and dramatically shortens search time. To substantiate these claims, the paper presents the architecture, protocol design, and implementation, and demonstrates effectiveness through performance evaluation.

이재혁 Jae-hyeok Lee , 김민성 Min-seong Kim , 김병국 Byoung-kug Kim

DOI:10.12673/jant.2025.29.5.627 JANT Vol.29(No.5) 627-632, 2025

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This study proposes a real-time web backend solution that is scalable and lightweight in an IoT environment in order to design and to implement the web backend server architecture for the Raspberry Pi-based IoT CCTV system. A web server was built with Node.js and express, and real-time video streaming and restful api service were provided simultaneously by combining WebSocket and HTTP. A real-time communication layer based on Socket.IO was designed to stably deliver the data collected by YOLO object detection server and Raspberry Pi device. In addition, it provides a video archive management function and secures scalability through SSH and restful structures. Stability was guaranteed by applying asynchronous I/O and CORS policies, and the experimental results verified efficient and stable performance with an average of 1.68 FPS, 1.86 ms delay, 8,600 frames continuous processing, and 8-9 MB of memory usage.

김수정 Su-jeong Kim , 김병국 Byoung-kug Kim

DOI:10.12673/jant.2025.29.5.633 JANT Vol.29(No.5) 633-638, 2025

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This paper proposes a hybrid data management architecture for CCTV object recognition that combines a relational database (PostgreSQL) with a vector database (Milvus). Detection metadata are stored in the relational DB, while visual feature embeddings are stored in the vector DB; a shared identifier links the two so that conditional queries and similarity search form a single workflow. We design an end-to-end pipeline - detection, storage, vectorization, and retrieval - and implement a prototype exposed via a web API. The architecture leverages modularity and loose coupling to divide responsibilities between operational logs/metadata management and high-dimensional similarity search, providing a foundation that can scale to multi-camera integration, tracking/Re-ID, and operational monitoring. We also present an application-level hybrid query pattern that combines metadata filtering with vector search, enabling a concise, practical data flow for intelligent CCTV systems.

안재운 Jae-woon Ahn , 목지현 Ji-hyun Mok , 권지헌 Ji-hun Kwon , 윤지용 Ji-yong Yoon

DOI:10.12673/jant.2025.29.5.639 JANT Vol.29(No.5) 639-645, 2025

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This paper emphasizes the importance of configuration management in airborne embedded software development based on the DO-178C standard, and presents a systematic approach to implementing effective configuration management. Building upon the SCMP, a Jira-based environment was designed to manage configuration items, employing a Kanban board to visualize the issue lifecycle and enhance transparency and traceability. The use of Jira’s query functions allowed for automated generation of SCMR, significantly improving documentation efficiency and accuracy. This automated system markedly reduced errors and time consumption compared to manual methods, while facilitating smooth change control and history tracking in collaborative development environments, thereby enhancing software quality and safety. The developed system was accepted as certification documentation for the SOI#2 submission, confirming its compliance with DO-178C requirements. This study demonstrates that strict adherence to the configuration management lifecycle, supported by an automated tool-based system, effectively meets certification demands and improves development quality in the field of airborne embedded software.

김경화 Kyung-hwa Kim , 정성훈 Seong-hoon Jeong , 심준환 Joon-hwan Shim

DOI:10.12673/jant.2025.29.5.646 JANT Vol.29(No.5) 646-653, 2025

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In smart farm systems, which are attracting attention as an application field of the 4th Industrial Revolution, numerous Ultraviolet Light-Emitting Diodes (UV-LEDs) have been employed for sterilization. This study proposes a cost-effective sterilization system by applying a rotating UV-LED structure, which expands the irradiation range and reduces the required number of LEDs, thereby lowering facility costs compared to conventional high-cost UV-LED systems. The proposed system integrates a rotation motor with UV-LEDs, enabling them to operate at a tilted angle while rotating within the target sterilization area, thereby enhancing irradiation coverage and uniformity. To verify sterilization performance, experiments were conducted using 365 nm UV-LEDs against Escherichia coli (ATCC 25922). The results confirmed that the rotating structure can achieve both cost efficiency and effective sterilization. This study demonstrates the potential of implementing a low-cost sterilization system applicable to smart farms and IoT-based environmental hygiene management.

김수열 Su-yeol Kim , 고요한 Yo-han Ko , 부성춘 Sung-chun Bu , 김수경 Su-kyung Kim , 김동욱 Donguk Kim

DOI:10.12673/jant.2025.29.5.654 JANT Vol.29(No.5) 654-664, 2025

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This paper analyzes the applicability of the ARS test in the MQM (Monitoring Quality Metric) stage for GNSS integrity monitoring. The ARS test is designed to detect acceleration, velocity, and step-type anomalies in observations, enabling early identification of abnormal signals that may affect measurement reliability. Two experiments were conducted: first, simulated data with intentional errors were used to assess detection accuracy; second, real GNSS data were analyzed to evaluate practical applicability and elevation-angle-dependent performance. The results show that the ARS test effectively detects various error components and that detection thresholds should be adapted by elevation angle, system, and frequency. These findings confirm the feasibility of applying the ARS test to MQM design for GNSS integrity.

김연혁 Yon-hyok Kim , 문일영 Il-young Moon

DOI:10.12673/jant.2025.29.5.665 JANT Vol.29(No.5) 665-671, 2025

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Ensuring a stable supply of raw materials is critical to maintaining continuity in semiconductor manufacturing processes. In particular, raw materials stored in tanks must be delivered before inventory reaches critical levels, requiring accurate schedule forecasting. This study proposes a hybrid forecasting model that integrates the statistical ARIMA method with the deep learning- based LSTM approach, utilizing real-time storage tank inventory data to optimize tank lorry delivery scheduling. By capturing linear trends with ARIMA and compensating residual components with LSTM, the model is designed to learn complex time-series patterns more effectively. Experimental results show that the proposed ARIMA-LSTM hybrid model consistently outperforms single models across all evaluation metrics, confirming its ability to capture both linear and nonlinear characteristics of inventory data. This research provides a practical and effective approach for precise pre-planning of tank lorry deliveries and establishes a foundation for advancing automated logistics operations in semiconductor manufacturing.

Joomyung Jung , Hyeongrae Kim , Kwonki Hong , Sangyoon Lee , Seungyeon Son , Hyukjun Oh

DOI:10.12673/jant.2025.29.5.672 JANT Vol.29(No.5) 672-675, 2025

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Pilot allocation methods for efficient channel estimation and cross polarization interference cancellation were designed and analyzed for the fixed point-to-point high capacity unmanned aerial vehicle data link communication system based on dual polarizations. The pilot resource assignment methods were analyzed by dividing into three types of allocation schemes: 1) mutual pilot resource allocation is non-overlapped, 2) orthogonal and 3) overlapped. From the viewpoint of XPIC's dual polarization crosstalk cancellation performance, the accuracy of channel estimation according to the three pilot allocation methods was analyzed through simulation. The channel estimation algorithm and crosstalk cancellation approach were modeled by applying the BLUE method. As a result of performance analysis through simulation, it was confirmed that the mutual overlapping pilot resource allocation method is advantageous when considering the actual environment requiring calibration.

Sunghoon Shin , Yeongjin Jang , Sangdon Bae , Hojin Choi , Hyukjun Oh

DOI:10.12673/jant.2025.29.5.676 JANT Vol.29(No.5) 676-679, 2025

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This paper proposes a multi-UAV detection model using Continuous Wavelet Transform (CWT) and LeNet-5. Audio signals from UAVs are transformed via CWT to extract features, which are then classified using the LeNet-5 model. The dataset contains audio signals from eight UAV types, one unknown UAV class, and one for environmental noise ― totaling ten classification labels. The proposed approach achieved over 95% accuracy in both training and real-world field tests. It is shown that detections and identifications of unknown drones based on audio signals are possible through the proposed method even under interfering sounds.