국내 최대 기계 및 로봇 연구정보

기술보고서

기술보고서 게시판 내용
타이틀	Instrument Design and In Orbit Performance of Planetary L1dars at NASA GSFC
저자	Sun, Xiaoli;; Cavanaugh, John F.;; Smith, James C.;; Abshire, James B.;; Neumann, Gregory A.;; Smith, David E.;; Zuber, Maria T.
Keyword	AEROSPACE ENVIRONMENTS;; EARTH ENVIRONMENT;; ENVIRONMENTAL MONITORING;; GEOCHEMISTRY;; LASER ALTIMETERS;; LIGHT SOURCES;; MARS GLOBAL SURVEYOR;; MULTISPECTRAL LINEAR ARRAYS;; OPTICAL RADAR;; POLAR REGIONS;; RANGEFINDING;; RECONNAISSANCE;; SPACE EXPLORATION;; SPACE MISSIONS
URL	http://hdl.handle.net/2060/20120010412
보고서번호	GSFC.OVPR.00389.2012
발행년도	2012
출처	NTRS (NASA Technical Report Server)
ABSTRACT	Space lidars provides a unique and powerful tool in earth environment monitoring and planetary exploration. Lidars operate at a much shorter wavelength than radars and can have a much narrower beam and much smaller transmitter and receiver. Lidars carry their own light sources and can continue measurement day and night, and over polar regions, where the passive instruments cannot observe. NASA Goddard Space Flight Center (GSFC) has developed several space lidars, three of them on planetary missions. These were the Mars Orbiter Laser Altimeter (MOLA) on the Mars Observer and Mars Global Surveyor missions, the Mercury Laser Altimeter (MLA) on the MErcury Surface Space ENvironment, GEochemistry and Ranging (MESSENGER) mission and the Lunar Orbital Laser Altimeter (LOLA) on the Lunar Reconnaissance (LRO) mission. These lidars all use similar technologies but with major improvement from one instrument In the next in size, power, measurement capability and operating environment.