Computer Science – Performance
Scientific paper
Jun 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007lyot.confe..29g&link_type=abstract
Proceedings of the conference In the Spirit of Bernard Lyot: The Direct Detection of Planets and Circumstellar Disks in the 21s
Computer Science
Performance
Scientific paper
High contrast imaging from space must overcome photon noise of the diffracted star light and scattered light from optical components defects. The very high contrast required (up to 10^-10 for terrestrial planets) puts severe requirements on the wavefront control system, as the achievable contrast is limited by the quality of the wavefront. This paper presents the results obtained on the High Contrast Imaging Testbed (HCIT) using a band limited Lyot coronagraph, at the Jet Propulsion Laboratory, operating at 2% bandwidth, using a general closed loop correction algorithm for high contrast imagining coronagraphs by conjugating the electric field in a predefined region in the image where terrestrial planets would be found. The estimation part of the algorithm reconstructs the complex field in the image plane using phase diversity caused by the deformable mirror. This method is compared to speckle nulling to analyze performance.
Give'on Amir A.
Kern Brian
Shaklan Stuart
No associations
LandOfFree
Electric Field Conjugation-based Wavefront Correction Algorithm for High Contrast Imaging Systems - Experimental Results does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Electric Field Conjugation-based Wavefront Correction Algorithm for High Contrast Imaging Systems - Experimental Results, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electric Field Conjugation-based Wavefront Correction Algorithm for High Contrast Imaging Systems - Experimental Results will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-883506