Absolute distance measurement method and system using optical frequency generator광주파수 발생기를 이용한 절대거리 측정방법 및 시스템

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The present invention relates to absolute distance measurement method and system using an optical frequency generator. The absolute distance measurement method using the optical frequency generator includes (a) generating a plurality of different stabilized wavelengths by using the optical frequency generator; (b) obtaining an initial estimation value of a distance to be measured by using a frequency sweeping interferometer; (c) analyzing an uncertainty range of the obtained initial estimation value; (d) measuring excess fraction parts of the different wavelengths by analyzing interference signals for each of the wavelengths; (e) determining integer parts for each of the different wavelengths within the uncertainty range of the initial estimation value; and (f) measuring an absolute distance to be measured by using the excess fraction part and the integer parts for each of the different wavelengths.
Assignee
KAIST
Country
US (United States)
Application Date
2008-10-21
Application Number
12289119
Registration Date
2011-03-01
Registration Number
7898669
URI
http://hdl.handle.net/10203/234388
Appears in Collection
ME-Patent(특허)
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