Estimation of aperture errors with direct interferometer-output feedback for spacecraft formation control

Long-baseline space interferometers involving formation flying of multiple spacecraft hold great promise as future space missions for high-resolution imagery. The major challenge of obtaining high-quality interferometric synthesized images from long-baseline space interferometers is to control these...

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Bibliographic Details
Main Authors: Hui-Ling Lu, Cheng, V.H.L., Leitner, J.A., Lyon, R.G., Carpenter, K.G.
Format: Conference Proceeding
Language:English
Subjects:
Applied sciences
Computer science
control theory
systems
Control theory. Systems
Error correction
Estimation error
Exact sciences and technology
Interferometers
Optical control
Optical feedback
Optical interferometry
Optical sensors
Payloads
Space missions
Space vehicles
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Description
Summary:Long-baseline space interferometers involving formation flying of multiple spacecraft hold great promise as future space missions for high-resolution imagery. The major challenge of obtaining high-quality interferometric synthesized images from long-baseline space interferometers is to control these spacecraft and their optics payloads in the specified configuration accurately. In this paper, we describe our effort toward fine control of long-baseline space interferometers without resorting to additional sensing equipment. We present an estimation procedure that effectively extracts relative x/y translational exit pupil aperture deviations from the raw interferometric image with small estimation errors.
ISSN:0743-1619
2378-5861
DOI:10.23919/ACC.2004.1383949