NFDI4DS | UHH-SEMS - Publication Details

Young-Keun Chang

ORCID: 0000-0001-7714-1846

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A5037693226

Research Areas

Spacecraft Design and Technology
Satellite Communication Systems
Spacecraft and Cryogenic Technologies
Inertial Sensor and Navigation
Space Satellite Systems and Control
Technology Assessment and Management
Spacecraft Dynamics and Control
Engineering Applied Research
Rocket and propulsion systems research
Internet of Things and Social Network Interactions
Infrared Target Detection Methodologies
Advanced Frequency and Time Standards
Systems Engineering Methodologies and Applications
Astro and Planetary Science
Calibration and Measurement Techniques
Mechanical Behavior of Composites
GNSS positioning and interference
Space exploration and regulation
Plasma Diagnostics and Applications
Aerospace Engineering and Energy Systems
Technology and Data Analysis
Impact of Light on Environment and Health
Astronomical Observations and Instrumentation
Aerospace Engineering and Control Systems
Aerospace and Aviation Technology

Korea Aerospace University
2008-2021

University of Oklahoma
2014

Korea Aerospace Research Institute
1999-2005

National Applied Research Laboratories
1997

Westinghouse Electric (Japan)
1974

Optimal mission scheduling for hybrid synthetic aperture radar satellite constellation based on weighting factors

OPENALEX - Publications

Hongrae Kim Young-Keun Chang

10.1016/j.ast.2020.106287 article EN Aerospace Science and Technology 2020-10-20

SEDT (System Engineering Design Tool) development and its application to small satellite conceptual design

OPENALEX - Publications

Young-Keun Chang Ki-Lyong Hwang Suk-Jin Kang

10.1016/j.actaastro.2007.01.067 article EN Acta Astronautica 2007-04-12

Design and Implementation of 3U CubeSat Platform Architecture

OPENALEX - Publications

Sua Song Hongrae Kim Young-Keun Chang

This paper describes the main concept and development of a standard platform architecture 3U Cube Satellite, whose design performance were implemented verified through KAUSAT-5 CubeSat. The is built in 1.5U size developed as modular to add expand payloads attitude control actuators meet user’s needs. In case electrical power system, solar panel, battery, deployment mechanism are designed be configured by user. Mechanical system maximizes capability accommodate various integrate miniaturize...

10.1155/2018/2079219 article EN cc-by International Journal of Aerospace Engineering 2018-12-24

High-Accuracy Image Centroiding Algorithm for CMOS-Based Digital Sun Sensors

OPENALEX - Publications

Young-Keun Chang Seok-Jin Kang Byung‐Hoon Lee

The digital sun sensor calculates the incident sunlight angle using image registered on a CMOS sensor. In order to accomplish this, an exact center of has be determined. Therefore, accurate estimate centroid is most important factor in development. general method for determining thresholding method, and this also simplest easy implement. Another centering algorithm often used filtering that utilizes processing. accuracy these methods, however, quite susceptible noise detected intensity. This...

10.1109/icsens.2007.4388403 article EN IEEE Sensors 2007-01-01

A new modeling and validation of two-axis miniature fine sun sensor

OPENALEX - Publications

Young-Keun Chang Mi-Yeon Yun Byung‐Hoon Lee

10.1016/j.sna.2006.05.037 article EN Sensors and Actuators A Physical 2006-07-06

MACH2 simulations of a micro laser ablation plasma thruster

OPENALEX - Publications

Trevor Moeller Young-Keun Chang

10.1016/j.ast.2007.02.002 article EN Aerospace Science and Technology 2007-02-23

Analysis of failure of nanobelt-coated copper-based leadframe/epoxy-based molding compound systems after pull-out test

OPENALEX - Publications

Ho-Young Lee Sung Cheol Park Insu Jeon Yong-Hyup Kim Young-Keun Chang

10.1016/j.msea.2005.06.042 article EN Materials Science and Engineering A 2005-08-16

Geostationary orbit determination for time synchronization using analytical dynamic models

OPENALEX - Publications

Jae-Cheol Yoon Keehoon Lee Byoung-Sun Lee Bang-Yeop Kim Kyu-Hong Choi and 3 more

A real time analytical orbit determination method has been developed for precision national synchronization. The one-way transfer technique via a geostationary TV satellite standard and frequency signal (STFS) dissemination system was considered. differential also applied mitigating errors in STFS system. Analytical dynamic with extended Kalman filter (EKF) implemented to improve mode (DSTFS) service accuracy by acquiring better of position. perturbation force models dynamics include the...

10.1109/taes.2004.1386869 article EN IEEE Transactions on Aerospace and Electronic Systems 2004-10-01

Momentum wheel start-up method for HAUSAT-2 ultra-small satellite

OPENALEX - Publications

Young-Keun Chang Byung‐Hoon Lee Soojung Kim

10.1016/j.ast.2005.07.011 article EN Aerospace Science and Technology 2005-09-15

Development of high-accuracy image centroiding algorithm for CMOS-based digital sun sensors

OPENALEX - Publications

Young-Keun Chang Byung‐Hoon Lee

10.1016/j.sna.2007.12.018 article EN Sensors and Actuators A Physical 2007-12-28

Near-Eigenaxis Rotation Control Law Design for Moving-to-Rest Maneuver

OPENALEX - Publications

Hwa-Suk Oh Young-Deuk Yoon Young-Keun Chang Jai-Hyuk Hwang Sang Seok Lim

10.2514/2.4840 article EN Journal of Guidance Control and Dynamics 2001-11-01

Orbit Determination of Spacecraft Using Global Positioning System Single-Frequency Measurement

OPENALEX - Publications

Jae-Cheol Yoon Kyoung-Min Roh Eun-Seo Park Bo-Yeon Moon Kyu-Hong Choi and 4 more

Covers advancements in spacecraft and tactical strategic missile systems, including subsystem design application, mission analysis, materials structures, developments space sciences, processing manufacturing, operations, applications of technologies to other fields.

10.2514/2.3881 article EN Journal of Spacecraft and Rockets 2002-09-01

Fracture behaviors of nanowire-coated metal/polymer systems under mode-I loading condition

OPENALEX - Publications

Ho‐Young Lee Yong-Hyup Kim Young-Keun Chang

10.1016/j.actamat.2004.08.040 article EN Acta Materialia 2004-10-04

Development of a 5 MVA Superconducting Generator Testing and Evaluation

OPENALEX - Publications

Young-Keun Chang Christopher A. Jones S. A. Karpathy D. C. Litz Andrew D. Patterson and 1 more

A 5 MVA superconducting generator has been tested and the design performance achieved. The test results demonstrate feasibility of applying electrical machinery to central station power plants ship propulsion systems. testing operation a required facility with number features which are not normally found in for conventional rotating machinery. instrumentation control systems described, methods discussed. these tests their significance

10.1109/tpas.1974.293996 article EN IEEE Transactions on Power Apparatus and Systems 1974-03-01

Development and testing of a micro-thruster impulse characterization system utilizing pendulum swing time measurements

OPENALEX - Publications

Suk-Jin Kang Hyea-Ran Cho Young-Keun Chang

10.1016/j.sna.2008.09.004 article EN Sensors and Actuators A Physical 2008-09-11

Mechanical System Design and Development of the HAUSAT-1 Picosatellite

OPENALEX - Publications

Ki-Lyong Hwang M.-Z. Min Byoung-Young Moon Young-Keun Chang

위성은 조립 및 시험 완료 후 운반 발사 순간부터 임무 궤도로 진입할 때까지 발사체에 의한 정하중, 동하중 충격하중을 겪게 되며, 임무궤도에서 열진공, 복사 미세중력 환경하에 놓이게 되어 위성의 설계, 제작, 시 이들 발사환경과 우주환경을 고려하여 개발을 수행하여야 한다. 본 논문에서는 HAUSAT-1 피코위성의 구조 열해석과 설계 결과를 논의하고, 과정과 우주에서 되는 환경을 모사한 발사환경 우주환경시험의 논의한다. 기계시스템은 인증 수준의 진동시험과 열진공시험 후에도 안정하다는 것을 확인하였다. The satellite is exposed to the severe vibration environments such as random vibration, acceleration, shock, and acoustics during launch ascent transportation. It also faced with various space thermal vacuum,...

10.5139/jksas.2004.32.9.103 article EN Journal of the Korean Society for Aeronautical & Space Sciences 2004-11-01

Pressure surge analysis and reduction in the kompsat propellant feed system

OPENALEX - Publications

Chang-Yeol Joh Kum-Dang Park Young-Keun Chang

10.1109/korus.2000.866079 article EN 2005-08-29

KAUSAT-5 Development and Verification based on 3U Cubesat Standard Platform

OPENALEX - Publications

Sua Song Soo‐Yeon Lee Hong‐Rae Kim Young-Keun Chang

본 연구에서는 3U 큐브위성의 표준 플랫폼을 기반으로 한누리 5호 위성을 개발하고 이를 검증하였다. 플랫폼의 기계시스템 설계에서는 초소형 부품 및 서브시스템 기능/성능을 PCB에 집적 소형화하도록 하고, 다양한 탑재체를 수용하도록 전기적 능력을 극대화한다. 5호는 지구저궤도(LEO)에서 운용하는 크기의 큐브위성으로 적외선 카메라를 이용한 지구관측임무와 가이거뮬러 튜브로 우주방사선 측정을 하는 과학임무를 수행한다. 또한, 자체 개발한 소형 가변속제어모멘트자이로(VSCMG)와 퍼지로직 기반의 MPPT (Maximum Power Point Tracking) 등의 부품(장치)들에 대한 기술검증도 포함한다. 5호의 검증을 위해 위성체계의 ETB 시험, 기능시험 인증(Qualification)과 인수(Acceptance) 수준의 환경시험을 수행하였고 이들 시험결과를 제시하였다.

10.5139/jksas.2017.45.8.686 article KO Journal of the Korean Society for Aeronautical & Space Sciences 2017-08-31

Design and development of HAUSAT-1 picosatellite system (CubeSat)

OPENALEX - Publications

Young-Keun Chang Jehong Park Younghyun Kim Byoung-Young Moon M.-Z. Min

This paper addresses the development and design of HAUSAT-1 (Hankuk Aviation University SATellite-1), a new generation picosatellite, being developed by SSRL (Space System Research Lab.) Hankuk University. project is funded Korean Government for purpose developing space core technology. first satellite program executed at level university in Korea. The CubeSat to develop weighing less than 1 kg provides opportunities with low construction, launch cost experiment platforms shorter production...

10.1109/rast.2003.1303389 article EN 2003-01-01

Development of the HAUSAT-2 nanosatellite for low-cost technology demonstration

OPENALEX - Publications

Young-Keun Chang Byoung-Young Moon Ki-Lyong Hwang Soo-Jung Kim Suk-Jin Kang

This paper addresses the development and design of HAUSAT-2 (Hankuk Aviation University SATellite-2) which is nano class ultra-small satellite, being developed by SSRL (Space System Research Lab.) Hankuk University. As a spin-off result, project can offer graduate undergraduate students great opportunities to be able understand satellite process, analysis, manufacturing, assembly, integration, test, launch operation also provides practical experience as team member. The main mission...

10.1109/rast.2005.1512557 article EN 2006-10-04

TRL Impact on Development Schedule and Cost in the Aerospace Project

OPENALEX - Publications

Hyung-Won Hwang Hong‐Rae Kim Young-Keun Chang

시스템개발 프로젝트에서 기술성숙도(TRL; Technology Readiness Level)는 개발기간과 비용에 직접적인 영향을 미친다. 만약 프로젝트 주관기관의 핵심기술요소(CTEs)에 대한 기술 성숙도를 정확히 평가하여, 그에 따른 일정의 영향 정도를 세밀히 분석한다면, 개발이 진행되는 과정에서 예산 추가와 일정 지연과 같은 위험을 최소화시킬 수 있다. 본 논문에서는 기술성숙도가 항공우주개발 프로젝트의 미치는 분석하고, 무인기시스템 개발사업에 적용하여 개발기관의 기술성숙도 수준 차이에 비용의 정량적인 변화를 분석하였다. TRL has a direct impact on development schedule and cost in the system or technology projects. If capability of organization for specified CTEs can be accurately assessed are analyzed as detailed...

10.5139/jksas.2012.40.3.264 article EN Journal of the Korean Society for Aeronautical & Space Sciences 2012-03-01

Linear μ-bending method for the measurement of the residual stress of surface-micromachined MEMS

OPENALEX - Publications

Jonghoon Kim Jeong-Gil Kim Soon-Chang Yeon Young-Keun Chang Junhee Hahn and 2 more

10.1016/j.sna.2004.09.011 article EN Sensors and Actuators A Physical 2004-10-21

Development of Mission Analysis and Design Tool for ISR UAV Mission Planning

OPENALEX - Publications

Hongrae Kim Byung-Il Jeon Narae Lee Seong-Dong Choi Young-Keun Chang

무인항공기(UAV)를 이용하여 효율적인 감시정찰을 수행하기 위해서는 센서의 고성능, 다중화와 함께 운용상황에 맞는 최적화된 비행경로계획이 요구된다. 이뿐만 아니라 시스템 개발 또는 임무운용 전 임무 효용성 평가, 평시와 전시에 빠른 작전 결정을 임무를 가시화할 수 있는 가시화 도구가 필요하다. 본 연구에서는 STK(Systems Tool Kit)와 MATLAB을 통합한 및 분석 도구를 개발하고 이를 통하여 UAV 감시정보정찰(ISR; Intelligence, Surveillance and Reconnaissance) 임무분석을 수행하였다. 개발된 임무분석 도구에는 비행최적화 뿐만 장애물 회피 알고리즘, FoM(Figure of Merit) 알고리즘이 적용되어 최적의 임무계획이 가능하도록 하였다. The optimized flight path planning which is appropriate for operation with high performance multiplex...

10.5139/jksas.2014.42.2.181 article EN Journal of the Korean Society for Aeronautical & Space Sciences 2014-02-01

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