초록

○ 탑재체 개발
조직등가비례계수기(
TEPC)를 큐브위성에 탑재할 수 있도록 소형화하여 개발
MR센서
자기장측정기 개발 및 큐브위성용 전개 장치 개발
○ 탑재 컴퓨터 연구
학과
간 공동연구를 통해 탑재 컴퓨터를 국산화하여 개발
○ 큐브위성 개발
- 자세제어계 설계 및 비행 소프트웨어 개발
- 위성 구조 설계 및 제작
- 통신 시스템 설계
- 전력분배 및 신호처리용 Interface Board 개발
(출처: 보고서 요약서 3p)

Abstract ▼

According to the plan of nation space development, Lunar exploration and development space telescope is scheduled until 2020. Internationally, high expectations are being place on the private space trip. For the success of space explorer mission and a safe of space activity from the space radiation

According to the plan of nation space development, Lunar exploration and development space telescope is scheduled until 2020. Internationally, high expectations are being place on the private space trip. For the success of space explorer mission and a safe of space activity from the space radiation exposure, the research of space environment is required. KHU (Kyung Hee University) has been developed a CubeSat for the space science mission called SIGMA (Scientific CubeSat with Instrument for Global Magnetic field and rAdiation), which includes payload of detector of space radiation and magnetometer.
SIGMA has a 3-unit CubeSat, and the weight is about 3.6 kg and power generation is 4 W. SIGMA is expected that the orbit altitude is approximately 450 - 720 km and Sun-synchronous orbit. SIGMA has included two scientific payloads for the performance of the space science mission. The main payload, TEPC (Tissue Equivalent Proportional Counter), is developed with KASI (Korea Astronomy and Space Science Institute) and the secondary payload, a miniature fluxgate magnetometer, is developed with UNH (University of New Hampshire). For security of inside space of Cubesat and reduction of EMI (Electro Magnetic Interference), we have developed a magnetometer deployer to be deployed of 70 cm from the cubesat body. The OBC of SIGMA is based on ARM cortex MCU and is developed with Department of Electronics and Radio Engineering at KHU. ACS (Attitude Control Sub-System), Power Sub-system and Communication Sub-system is controlled by command of OBC. ACS is using torque coil and torque rods and has designed to point the magnetometer deployer to the Earth. The power sub-system used 30 Wh battery for CubeSat and solar panel and IIB (Instrument Interface board) has been developed at KHU. The communication sub-system uses unlink for the frequency of UHF range and downlink for the frequency of VHF or S-band to depend on the operation situation. Fully assembled SIGMA has been successfully passed the environment test of vibration test and thermal-vacuum test.
We have performed to achieve the objective of research for development of the SIGMA CubeSat. We have expected that development of SIGMA CubeSat is on the basis of students strengthen research ability, research for space radiations and magnetic fields in space environment, secure fundamental technique for CubeSat of lunar exploration, secure for development of the magnetometer, localization of core technology for the CubeSat, and space technology base expansion
(출처: summary 6p)

목차 Contents

• 표지 ... 1
• 제출문 ... 2
• 보고서 요약서 ... 3
• 요약문 ... 4
• SUMMARY ... 6
• CONTENTS ... 8
• 목차 ... 9
• 제 1 장 연구개발과제의 개요 ... 11
• 제 1 절 연구개발의 목적 ... 11
• 제 2 절 과학적 임무목적 ... 11
• 1. 우주환경과 우주방사선 연구 ... 11
• 2. 지구자기장 연구 ... 13
• 제 3 절 기술적 임무목적 ... 14
• 1. 탑재체 우주시험 ... 14
• 2. 측정 장비용 전개장치 연구 ... 15
• 3. 탑재 컴퓨터 개발 ... 15
• 제 4 절 연구개발의 필요성 ... 16
• 제 2 장 국내외 기술개발 현황 ... 17
• 제 3 장 연구개발 수행내용 및 결과 ... 18
• 제 1 절 서론 ... 18
• 제 2 절 시스템 요구사항 ... 20
• 제 3 절 큐브위성 서브시스템 ... 21
• 1. 탑재체계 ... 21
• 2. 구조계 ... 46
• 3. 통신계 ... 52
• 4. 전력계 ... 67
• 5. 자세제어계 (ACS) ... 93
• 6. 명령 및 데이터 처리계 ... 105
• 제 4 절 우주환경 시험 및 결과 ... 120
• 1. 열진공 시험 ... 120
• 2. 진동 시험 ... 129
• 제 4 장 목표달성도 및 관련분야에의 기여도 ... 156
• 제 1 절 목표달성도 ... 156
• 1. 연구개발의 최종 목표 ... 156
• 2. 연차별 연구개발 목표 및 내용 ... 157
• 3. 계획대비 달성도(선정시 제시된 연구목표) ... 158
• 4. 연구 목표 추출 및 가젓치 부여 ... 159
• 제 5 장 연구개발결과의 활용계획 ... 160
• 제 6 장 국가과학기술종합정보서비스에 등록한 연구시설, 장비 현황 ... 161
• 제 7 장 참고문헌 ... 162
• Appendix A ... 165
• 끝페이지 ... 168