표제지
초록
Abstract
목차
제1장 서론 11
1.1. 연구 배경 11
1.2. 선행 연구 12
1.3. 연구 내용 및 의의 15
1.4. 논문 구성 16
제2장 본론 17
2.1. 배경 이론 17
2.1.1. 좌표계 정의 17
2.1.2. 큐브위성 자세 표현 20
2.1.3. 전력 생산량 계산 27
2.1.4. SQP 최적화 알고리즘 29
2.2. 큐브위성 자세각 최적화 문제 정의 30
2.2.1. 태양전지패널 및 S-Band 안테나 법선 벡터 30
2.2.2. 자세각 최적화 식 정의 32
2.2.3. 목적함수 결과 확인 33
2.2.4. 큐브위성 공전 궤도 설정 및 전파 35
2.3. 큐브위성 자세각 최적화 결과 36
2.3.1. 통신 영역 설정 37
2.3.2. 시나리오 설정 38
2.3.3. 시나리오 별 결과 40
제3장 결론 55
참고 문헌 56
Table 1. Azur Space 3G30A Specification 34
Table 2. Orbital Elements 35
Table 3. Scenario 1 39
Table 4. Scenario 2 39
Table 5. Scenario 3 39
Figure 1. Flowchart of the branch-and-bound(MILP) method 12
Figure 2. An example process at the selecting and scheduling step 13
Figure 3. A visualization of SOC-i's Concept of Operations 13
Figure 4. Pseudo Code of Branch-and-Price Algorithm 14
Figure 5. ECI(MJ2000) Frame 18
Figure 6. LVLH Frame 19
Figure 7. BRF of the INHA RoSAT 20
Figure 8. Reference frames A and B 21
Figure 9. EnduroSat's 3U SolarPanel(left) and AzurSpace 3G30C 28
Figure 10. Normal vectors of a Solar Cell and Sun 29
Figure 11. Normal vectors of Solar Panels and a S-Band Antenna in BRF 30
Figure 12. Conceptual diagram of INHA RoSAT's S-Band communication 31
Figure 13. Definition of azimuth and elevation angles of solar vectors 34
Figure 14. Results of objective function according to solar vector incident angle 35
Figure 15. Case 1: A virtual ground station 37
Figure 16. Case 2: Virtual ground stations 38
Figure 17. LTAN 06:30 (left) and LTAN 12:30 (right) 38
Figure 18. S1C1:Generated power with constraint 40
Figure 19. S1C1:Generated power without constraint 41
Figure 20. S1C1:Attitude angles with constraint 41
Figure 21. S1C1:Attitude angles without constraint 42
Figure 22. S1C2:Generated power with constraint 43
Figure 23. S1C2:Generated power without constraint 43
Figure 24. S1C2:Attitude angles with constraint 44
Figure 25. S1C2:Attitude angles without constraint 44
Figure 26. S2C1:Generated power with constraint 45
Figure 27. S2C1:Generated power without constraint 46
Figure 28. S2C1:Attitude angle with constraint 46
Figure 29. S2C1:Attitude angle without constraint 47
Figure 30. S2C2:Generated power with constraint 48
Figure 31. S2C2:Generated power without constraint 48
Figure 32. S2C2:Attitude angles with constraint 49
Figure 33. S2C2:Attitude angles without constraint 49
Figure 34. S3C1:Generated power with constraint 50
Figure 35. S3C1:Generated power without constraint 51
Figure 36. S3C1:Attitude angles with constraint 51
Figure 37. S3C1:Attitude angles without constraint 52
Figure 38. S3C2:Generated power with constraint 53
Figure 39. S3C2:Generated power without constraint 53
Figure 40. S3C2:Attitude angles with constraint 54
Figure 41. S3C2:Attitude angles without constraint 54