TRS 수직고공전파통신시스템의 링크버짓과 시스템 개념설계 慶熙 ...

그림 차례
(그림 1) 성층권 환경과 전파통신 시스템의 진화 ··········································· 5
(그림 2) 성층권 통신 시스템 서비스 구도 ······················································· 6
(그림 3) 성층권 통신시스템의 지상관제 개념도 ············································· 8
(그림 4) 서비스 커버리지 반경과 요구 앙각 ··················································· 9
(그림 5) 일반적인 반사판 안테나의 복사 패턴 ············································· 11
(그림 6) 주파수 재사용 빔 배치 형태 ····························································· 11
(그림 7) 안테나 이득, 직경 및 빔폭 사이의 관계 ········································ 12
(그림 8) 지상국 TRS 시스템 구조 ·································································· 18
(그림 9) 성층권 비행선 통신 시스템 개념도 ················································· 26
(그림 10) 주링크 ·································································································· 27
(그림 11) 보조링크 ······························································································ 27
(그림 12) 통신제어기의 복부호기 ···································································· 28
(그림 13) 성층권 탑재체 트랜스폰더 ······························································ 28
(그림 14) LOS 서브시스템 ················································································ 29
(그림 15) iDEN 시스템 구성도 ········································································· 30
(그림 16) 성층권 비행체 통신간의 서비스망 연결도 ··································· 30
(그림 17) 1:1 단말기 통신 - Ad hoc를 이용한 Network 개념 ················ 31
(그림 18) TRS 단말기와 비행체의 통신링크 개념도 ·································· 32
(그림 19) 16-QAM Eb/No와 BER 곡선 ························································ 39
(그림 20) Uplink상의 수신요구전계강도와 수신안테나이득 ······················· 43
(그림 21) Uplink상의 수신파워와 캐리어 대 잡음비 ··································· 43
(그림 22) Downlink상의 수신요구전계강도와 수신안테나이득 ·················44
(그림 23) Downlink상의 수신파워와 캐리어 대 잡음비 ····························· 44
- v -