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New nanosatellite system captures better imagery at lower cost

Date:
January 4, 2019
Source:
American Associates, Ben-Gurion University of the Negev
Summary:
Researchers have developed a new satellite imaging system that could revolutionize the economics and imagery available from space-based cameras and even earth-based telescopes.
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Ben-Gurion University researchers have developed a new satellite imaging system that could revolutionize the economics and imagery available from space-based cameras and even earth-based telescopes.

"This is an invention that completely changes the costs of space exploration, astronomy, aerial photography, and more," says Angika Bulbul, a BGU Ph.D. candidate under the supervision of Prof. Joseph Rosen in the BGU Department of Electrical and Computer Engineering.

In a paper published in the December issue of Optica, the researchers demonstrate that nanosatellites the size of milk cartons arranged in a spherical (annular) configuration were able to capture images that match the resolution of the full-frame, lens-based or concave mirror systems used on today's telescopes.

"Several previous assumptions about long-range photography were incorrect," Bulbul says. "We found that you only need a small part of a telescope lens to obtain quality images. Even by using the perimeter aperture of a lens, as low as 0.43 percent, we managed to obtain similar image resolution compared to the full aperture area of mirror/lens-based imaging systems. Consequently, we can slash the huge cost, time and material needed for gigantic traditional optical space telescopes with large curved mirrors."

To demonstrate the synthetic marginal aperture with revolving telescopes (SMART) system capabilities, the research team built a miniature laboratory model with a circular array of sub-apertures to study the image resolution and compare them with full lens imagery.


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Materials provided by American Associates, Ben-Gurion University of the Negev. Note: Content may be edited for style and length.


Journal Reference:

  1. Angika Bulbul, A. Vijayakumar, Joseph Rosen. Superresolution far-field imaging by coded phase reflectors distributed only along the boundary of synthetic apertures. Optica, 2018; 5 (12): 1607 DOI: 10.1364/OPTICA.5.001607

Cite This Page:

American Associates, Ben-Gurion University of the Negev. "New nanosatellite system captures better imagery at lower cost." ScienceDaily. ScienceDaily, 4 January 2019. <www.sciencedaily.com/releases/2019/01/190104104030.htm>.
American Associates, Ben-Gurion University of the Negev. (2019, January 4). New nanosatellite system captures better imagery at lower cost. ScienceDaily. Retrieved July 18, 2024 from www.sciencedaily.com/releases/2019/01/190104104030.htm
American Associates, Ben-Gurion University of the Negev. "New nanosatellite system captures better imagery at lower cost." ScienceDaily. www.sciencedaily.com/releases/2019/01/190104104030.htm (accessed July 18, 2024).

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