Paper
20 October 2004 Multiple instrument distributed aperture sensor (MIDAS) evolved design concept
David Stubbs, Alan Duncan, Joseph T. Pitman, Robert Sigler, Rick Kendrick, Eric H. Smith, James Mason
Author Affiliations +
Abstract
An innovative approach to future space telescopes that enables order of magnitude increased science return for astronomical, Earth-observing and planetary science missions is described. Our concept, called Multiple Instrument Distributed Aperture Sensor (MIDAS), provides a large-aperture, wide-field, diffraction-limited telescope at a fraction of the cost, mass and volume of conventional space telescopes. MIDAS integrates many optical interferometry advances as an evolution of over a decade of technology development in distributed aperture optical imaging systems. Nine collector telescopes are integrated into MIDAS as the primary remote sensing science payload, supporting a collection of six back-end science instruments tailored to a specific mission. By interfacing to multiple science instruments, enabling sequential and concurrent functional modes, we expand the potential science return of future space science missions many fold. Passive imaging modes with MIDAS enable remote sensing at diffraction-limited resolution sequentially by each science instrument, as well as in somewhat lower resolution by multiple science instruments acting concurrently on the image, such as in different wavebands. Our MIDAS concept inherently provides nanometer-resolution hyperspectral passive imaging without the need for any moving parts in the science instruments. For Earth-observing and planetary science missions, the MIDAS optical design provides high-resolution imaging at high altitudes for long dwell times, thereby enabling real-time, wide-area remote sensing of dynamic planetary surface characteristics. In its active remote sensing modes, using an integrated solid-state laser source, MIDAS enables surface illumination, active spectroscopy, LIDAR, vibrometery, and optical communications. Our concept is directly scalable to telescope synthetic apertures of 5m, limited by launch vehicle fairing diameter, and above 5m diameter achieved by means of autonomous deployments or manned assembly in space. MIDAS is a proven candidate for space flight missions, enabled by our continued investments in focused technology development areas.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David Stubbs, Alan Duncan, Joseph T. Pitman, Robert Sigler, Rick Kendrick, Eric H. Smith, and James Mason "Multiple instrument distributed aperture sensor (MIDAS) evolved design concept", Proc. SPIE 5550, Free-Space Laser Communications IV, (20 October 2004); https://doi.org/10.1117/12.560319
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KEYWORDS
Space telescopes

Telescopes

Remote sensing

Planetary science

Interfaces

Sensors

Optical design

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