光學遙測酬載

Remote Sensing Instrument

福衛五號搭載的主要任務酬載即為光學遙測酬載，這顆酬載負責執行福衛五號的主要任務，以推掃（pushbroom）的方式於720公里高的軌道對地球表面進行多光譜影像拍攝。光學遙測酬載使用之多光譜波段包含一個全色態（PAN，400－700 nm）以及四個從藍光至近紅外的多光譜波段，設計的地面解析度為全色態2公尺，多光譜波段4公尺。光學遙測酬載由各個次系統所組成，包含光學次系統、結構次系統、熱控次系統、聚焦面組合及電子單元。以下逐一簡約介紹組成光學遙測酬載各個次系統以及整合測試過程。 FORMOSAT-5 Remote Sensing Instrument(RSI) is primary payload on FORMOSAT-5 optical remote sensing satellite. RSI will capture earth images by push-broom method from a sun synchronous orbit at 720-km altitude with 98.28-degree inclination angle, which provides 2-m resolution panchromatic(PAN, black & white) and 4-m resolution multi-spectral(MS, color) images. The RSI consists of several sub-systems, including optical sub-system, structure sub-system, thermal control sub-system, focal plane assembly(FPA) and electronic unit(EU) . This article will briefl y introduces the RSI sub-systems and RSI integration and testing process.