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Applied Optics, 2022
A laser-illuminated differential image motion monitor (DIMM) is presented that is able to measure the atmospheric coherence length r 0 along horizontal ground paths. This is accomplished by implementing a mono-static setup in which the transmitter and receiver are co-located and transmit to a retroreflective ...
Randall, Hanna +3 more
openaire +2 more sources
A laser-illuminated differential image motion monitor (DIMM) is presented that is able to measure the atmospheric coherence length r 0 along horizontal ground paths. This is accomplished by implementing a mono-static setup in which the transmitter and receiver are co-located and transmit to a retroreflective ...
Randall, Hanna +3 more
openaire +2 more sources
A Hartmann Differential Image Motion Monitor (H-DIMM) for Atmospheric Turbulence Characterisation
Publications of the Astronomical Society of Australia, 1996AbstractWe describe the use of a multi-aperture Hartmann mask coupled to a slightly out-of-focus focal plane array imager to monitor atmospheric turbulence (‘seeing’) produced by refractive index fluctuations. The imager (a CCD) is located inside or outside the focal surface of the imaging system so that each sub-aperture of the Hartmann mask produces ...
John Bally +6 more
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Applied Optics, 2013
A laser differential image-motion monitor (DIMM) system was designed and constructed as part of a turbulence characterization suite during the DARPA free-space optical experimental network experiment (FOENEX) program. The developed link measurement system measures the atmospheric coherence length (r0), atmospheric scintillation, and power in the bucket
David M, Brown +2 more
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A laser differential image-motion monitor (DIMM) system was designed and constructed as part of a turbulence characterization suite during the DARPA free-space optical experimental network experiment (FOENEX) program. The developed link measurement system measures the atmospheric coherence length (r0), atmospheric scintillation, and power in the bucket
David M, Brown +2 more
openaire +2 more sources
Advanced Portable Differential Image Motion Monitor
2000Abstract : Atmospheric turbulence severely limits the resolution attainable with most astronomical imaging systems, yet quantitative characterization of turbulence conditions remains a difficult and expensive proposition. The goal of this project was to demonstrate that a dual aperture instrument could be constructed, primarily from commercial off-the ...
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Study on the Measurement of Coherence Length by Differential Image Motion Monitor
Acta Optica Sinica, 2013于龙昆 Yu Longkun +3 more
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Research of Numerical Simulation and Comparison of Experiment from Differential Image Motion Monitor
ACTA PHOTONICA SINICA, 2014陈华林 CHEN Hua-lin +3 more
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From Differential Image Motion to Seeing
Publications of the Astronomical Society of the Pacific, 2002Andrei Tokovinin
exaly
Differential methods for the identification of 2D and 3D motion models in image sequences
Signal Processing: Image Communication, 1995Jean-Luc Dugelay
exaly