ABSOLUTE DISTANCE MEASUREMENT METHOD AND SYSTEM USING OPTICAL FREQUENCY GENERATOR

摘要

The present invention relates to an absolute distance measuring method and a system using an optical frequency generator, (a) the generating a plurality of different wavelength stabilization by using the optical frequency generator; (B) obtaining an initial estimate of the distance to be measured using the principle of frequency scanning interferometer; (C) analyzing the uncertainty range of the acquired initial estimate; (D) the step by analyzing the interference signal for each wavelength by the principle of the interferometer for measuring the wavelength of each fraction of the plurality of different wavelengths; (E) determining for each of the integer portion of the plurality of different wavelength in the range of uncertainty of the initial estimate; And (f) comprises the step of measuring an absolute distance of a distance to be measured using the respective integer part and a fractional part for the plurality of different wavelength.