J4 ›› 2010, Vol. 28 ›› Issue (04): 347-.
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WANG Hong-xuan|JI Tong-bo|WANG Wei-guo|LIU Ting-xia|LI Bo
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Published:
Abstract:
Tracking around the zenith requires a very rapid motion in azimuth, approaching infinity in the limit of a star passing exactly through the zenith. The result is a blind zone around the zenith for altitudeazimuth mounts. The zenith blind zone is mainly considered and some formulae are given for estimation of the dimensions of it. The effect of field rotation, which is another disadvantage for altitudeazimuth optoelectronic tracking system, is analyzed briefly. Two solutions to overcome the zenith blind zone are presented, which also leads to some directions for future investigation.
Key words: altitude-azimuth mounts, optoelectronic system, blind zone
CLC Number:
WANG Hong-xuan|JI Tong-bo|WANG Wei-guo|LIU Ting-xia|LI Bo. Solution to Overcome Zenith Blind Zone in AltitudeAzimuth Optoelectronic System[J].J4, 2010, 28(04): 347-.
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http://xuebao.jlu.edu.cn/xxb/EN/Y2010/V28/I04/347
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