Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Michael J. Steinbock"'
Autor:
Michael J. Steinbock, Timothy J. Schulz, Timothy Holmes, Toby Sanders, Melena Abijaoude, Anastacio Arreola, Robert Hedges, John Peters
Publikováno v:
The Journal of the Astronautical Sciences. 69:175-191
This article presents new developments in a multiframe blind deconvolution algorithm for imaging low earth orbiting objects during flyover. The foundational aspects of the algorithm rely on the constrained maximum likelihood (ML) formulation in the p
Autor:
Mark F. Spencer, Milo W. Hyde, Brian Anderson, Michael J. Steinbock, Noah R. Van Zandt, Steven T. Fiorino
Publikováno v:
Applied optics. 57(15)
Polychromatic laser light can reduce speckle noise in wavefront-sensing and imaging applications that use direct-detection schemes. To help quantify the achievable reduction in speckle, this paper investigates the accuracy and numerical efficiency of
Autor:
Noah R. Van Zandt, Jack E. McCrae, Mark F. Spencer, Michael J. Steinbock, Milo W. Hyde, Steven T. Fiorino
Publikováno v:
Applied optics. 57(15)
Polychromatic laser light can reduce speckle noise in wavefront-sensing and imaging applications that use direct-detection schemes. To help quantify the achievable reduction in speckle, this paper investigates the accuracy and numerical efficiency of
Publikováno v:
Proceedings of the Adaptive Optics for Extremely Large Telescopes 5.
Publikováno v:
Optical Engineering. 57:1
Past research in adaptive optics (AO) has demonstrated the link between apparent beacon extent and wavefront gradient estimation sensitivity, or optical gain, of a classical Shack-Hartmann (SH) subaperture when using quad-cell detector regions. Pixel
Autor:
Noah R. Van Zandt, Michael J. Steinbock, Milo W. Hyde, Mark F. Spencer, Steven T. Fiorino, Brian Anderson
Publikováno v:
SPIE Proceedings.
Polychromatic laser light can reduce speckle contrast in wavefront-sensing and imaging applications that use direct detection schemes. To help quantify the associated reduction in speckle contrast, this study investigates the accuracy and numerical e
Publikováno v:
Unconventional Imaging and Wavefront Sensing 2015.
Digital holography wave-front sensing in the off-axis image plane recording geometry shows distinct potential for directed-energy and remote-sensing applications. For instance, digital holographic detection provides access to the amplitude and wrappe
Publikováno v:
SPIE Proceedings.
Investment in laser technology has led to significant advances in remote sensing, astronomy, industrial processing, and medical technology. To celebrate this rich heritage and promote public awareness in optics and photonics, the SPIE Student Chapter
Publikováno v:
Imaging and Applied Optics 2014.
Optical wave propagation through long paths of extended turbulence presents unique challenges to adaptive optics (AO) systems. As scintillation and branch points develop in the beacon phase, challenges arise in accurately unwrapping the received wave
Autor:
Michael J. Steinbock, Milo W. Hyde
Publikováno v:
SPIE Proceedings.
Adaptive optics is used in applications such as laser communication, remote sensing, and laser weapon systems to estimate and correct for atmospheric distortions of propagated light in real-time. Within an adaptive optics system, a reconstruction pro