TY - JOUR
T1 - Atmospheric turbulence effects on optical spatial coding
AU - Wilner, K.
AU - Wetzler, M.
AU - Ben-Yosef, N.
PY - 1989/7/5
Y1 - 1989/7/5
N2 - A common use of optical spatial coding is the application for guidance and tracking concept. ThespatialThe spatial coding is usually implemented by a rotating reticle. The spatial coding is performed on an image, like in the case of anti-aircraftanti-aircraft missiles, or on a laser beam projector, such as in the beam rider concept. Experience indicates that the lateral position measurement by optical spatial coding is strongly affected by the Modulated Transfer Function (MTF) of the optical channel. In our example, this channel consists of a laser beam generator, the atmosphere, an optical receiver and threshold logic. The analysis will demonstrate the influence of the turbulence affected edge response, scintillation effects and threshold dependent error on the line of sight (LOS) measurments. As Asa aresult, the feasibility of an adaptive threshold logic demonstrates improved accuracy of the location error.
AB - A common use of optical spatial coding is the application for guidance and tracking concept. ThespatialThe spatial coding is usually implemented by a rotating reticle. The spatial coding is performed on an image, like in the case of anti-aircraftanti-aircraft missiles, or on a laser beam projector, such as in the beam rider concept. Experience indicates that the lateral position measurement by optical spatial coding is strongly affected by the Modulated Transfer Function (MTF) of the optical channel. In our example, this channel consists of a laser beam generator, the atmosphere, an optical receiver and threshold logic. The analysis will demonstrate the influence of the turbulence affected edge response, scintillation effects and threshold dependent error on the line of sight (LOS) measurments. As Asa aresult, the feasibility of an adaptive threshold logic demonstrates improved accuracy of the location error.
UR - http://www.scopus.com/inward/record.url?scp=84957475652&partnerID=8YFLogxK
U2 - 10.1117/12.951085
DO - 10.1117/12.951085
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:84957475652
SN - 0277-786X
VL - 1038
SP - 475
EP - 483
JO - Proceedings of SPIE - The International Society for Optical Engineering
JF - Proceedings of SPIE - The International Society for Optical Engineering
ER -