Accuracy of frequency estimation in conoscopic holography

Conoscopic holography enables us to carry out precise distance measurement by non-contact methods. The distance between the ConoProbe and the point on the measured object where the laser beam strikes the surface, is determined by the frequency of fringes produced by the holographic image. The quality of measurement depends on a number of parameters of which the variation of frequency estimation is probably the most important. The purpose of this work is to evaluate errors in frequency estimation using statistical simulation.