Title :
Space Interferometry Mission System testbed-3: architecture
Author :
Alvarez-Salazar, Oscar S. ; Goullioud, Renaud ; Azizi, Ali
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The Space Interferometry Mission´s System testbed-3 has recently integrated its precision support structure and spacecraft backpack (bus) on a pseudo free-free 0.5 Hz passive isolation system. The precision support structure holds a 3-baseline stellar interferometer instrument. The architecture of the instrument is based on the current flight system design, and its main purpose is to demonstrate nanometer class fringe stabilization using the path length feed forward technique. This work describes the overall instrument architecture, brief theory of operation, and preliminary measurements.
Keywords :
aerospace instrumentation; aerospace testing; feedforward; interferometers; 0.5 Hz; Space Interferometry Mission System; flight system design; nanometer class fringe stabilization; passive isolation system; path length feedforward technique; precision support structure; spacecraft backpack; stellar interferometer instrument; Feeds; Instruments; Isolation technology; Laboratories; Optical interferometry; Propulsion; Space missions; Space technology; Space vehicles; System testing;
Conference_Titel :
Aerospace Conference, 2004. Proceedings. 2004 IEEE
Print_ISBN :
0-7803-8155-6
DOI :
10.1109/AERO.2004.1367993
